Copan CAD

 

The CAD function of Copan can be used to produce plans for plotting or printing.  The plans may be produced freehand using the mouse cursor or from points in a Copan coordinate file.

 

 

 

 

Features

 

Copan Pro versus Copan Pro+DWG

 

Note that while all features described in this document are available in Copan Pro+DWG, not all are available in Copan Pro. Features labeled “!DWG!” are not available in Copan Pro.

 

Model space and paper space

 

Copan CAD supports AutoCAD's "model space" and "paper space" in a map.  Viewports are also supported although they are restricted to plan view.  Three dimensional views are not available.

 

Model space is used for creating drawings using real world coordinates.  Graphics such as symbols and text placed in model space are sized using real world dimensions.   Graphics created using coordinate file points are in typically in model space.      

 

Paper space is for preparing plans for plotting and allows multiple views of the real world at different scales on a single drawing.  Paper space coordinate origin is (0, 0) and the maximum coordinates are limited by the actual plot size.  Viewports are used to place scaled views of model space in paper space.  In addition to viewports, all graphic types such as lines, symbols, and text may be placed in paper space. 

The same drawing units used for model space and paper space. Drawing units may be anything.  The same units used throughout: coordinates, text and insert sizes, line widths, etc.  For example if working in metres, text size will be in metres in model space and paper space.  Uniform drawing units allow simple mapping between model space and paper space. Scale is a simple ratio of model space to paper space.   

 

Viewports

 

A map in Copan may have viewports in paper space which looks onto model space.  The model space may be in the same map as the paper space viewport or the model space may be in a separate Copan map.  When adding a viewport to paper space, you may use the file browser to specify the map where the model space is.  If the reference to the model space is left blank, the model space is assumed to be in the same map as the paper space.

 

Graphics in a viewport cannot be edited.  This is because a viewport is just that, a view of model space.  However, changing the graphics in model space will affect viewports which offer views of the changed graphics. The viewport parameters such as the paper space location, size, and scale may be changed. 

 

Viewports can be frozen and decomposed into individual graphic elements.  When this is done, changes made in the model space will no longer be transferred to these "viewports" as they are not really viewports any longer. 

 

 

Automated Azimuth / Distance Line Annotations

 

Lines may be automatically annotated with azimuth and distance text.  The values are calculated from the line end points and placed when a line is added.

 

 

Drawings Elements Linked to Saved Points

 

Copan drawing may be linked to a coordinate file. Points in the coordinate file may be used to place graphic elements and to provide data for annotating points and lines.  Graphic elements created in this manner have a linkage to the coordinate file so when the points' data change, the changes can be reflected in the drawing graphics.  For example, if you place a line in a drawing from Pt #1 to Pt #2 with azimuth and distance annotations and then subsequently change the northing and/or easting of Pt #2, the drawing will be automatically updated to reflect the new position of Pt #2.  This includes changing the azimuth and distance annotations to new values.

 

 

Graphic Intersections

 

Intersections may be calculated graphically with lines, arcs, and circles in a Copan drawing.  To create an intersection, select two existing graphic elements and select the Intersection function.  If an intersection is successful, the graphic elements are split at the intersection points.  The following intersections are possible:

-          Line / Line

-          Line / Arc

-          Line / Circle

-          Arc / Arc

-          Circle / Circle

 

If a coordinate file is open during the intersection calculations, the new intersection points will be saved to the coordinate file.

 

 

Text, Insert, and Line Width Sizing

 

Text, inserts, and line widths should be sized according to how they should appear in the final plot.  In model space, this means that their size should be such when viewed at the output scale in paper space.  For example, 5m high text in model space when viewed at scale of 1:1000 will be 5mm high.  Of course, 5mm high text in paper space will be 5mm when plotted. 

 

 

Scale Dependent Text and Inserts

 

Text and insert sizes in viewports in paper space are driven by scale.  Each annotation type or insert can be configured to be drawn at specified size depending on the viewport scale.  You can create a table listing drawing scales and corresponding sizes.  When the graphics are drawn in a viewport, they will appear at the specified size for the scale.  If no text or insert size is specified for a scale, then the graphic is drawn at the model size scaled by the viewport scale.    

 

Scaling of text and inserts in may be turned off for a drawing.  In that case, the sizes are model space size scaled according to the viewport scale.

 

 

AutoCAD Support  !DWG!

 

Copan uses Open Design Alliance’s Teigha software to read and write AutoCAD DWG files.  Copan’s support for reading DWG files is not rigorous but the basic elements including viewports are supported.   

 

 

Fonts

 

Windows fonts or certain AutoCAD compiled Shape fonts (shx) may be used. AutoCAD shx fonts supported include shapes 1.0, shapes 1.1, and unifont 1.0. 

 

 

Line Types

 

One dimensional line types are supported.  Users may define their own line types.  Copan can read line type files in the AutoCAD .LIN format. 

 

 

Creating Plans for Plotting

 

You can create rough sketches or finished plans for plotting.  Use any printer or plotter supported by Windows.

 

 

Drawing Options

 

Copan’s drawing options are saved generally and as part of each drawing file.  Each drawing can have different options and these options can be transferred from drawing to drawing as well.

 

 

Entities

 

The following graphic entities are supported in Copan:

 

Point

-          coordinate file based

-          symbol

-          attribute text

 

Block

-          includes attributes

 

Insert

-          block reference

 

Attribute

-          graphic text that is linked to an insert

 

Line

-          straight line segment

-          bearing / distance annotation

 

Polyline

-          sequence of straight line segments

 

Polygon

-          similar to Polyline except closed

 

Arc

-          circular curve, defined by various methods

 

Circle

-          defined by various methods

 

Rectangle

-          a four-sided right-angled polygon

 

Compound line

-          line made up of sequence of line segments and circular arcs

 

Text

-          various Windows and AutoCAD fonts are supported

 

Multi-Line Text

      - may be imported from a text file   

 

 

Viewport

-          a rectangle in paper space that shows a portion of model space at specified scale and rotation

 

 

Input modes

Copan provides two methods for graphical position input.  They are:

 

1) Cursor

- choose location by clicking on the location in the map window with the mouse pointer

 

2) Points in coordinate file

- enter the number of a point in the opened coordinate file to specify the location

 

 

 

 

Options

 

Snap

- snap-to-vertex/point may be turned on or off

 

Active layer

- new graphic entities are added to the active layer

 

Ortho

-          lines placed may be constrained orthogonally to lie in the NS or EW direction

 

 

 

Fonts

 

Windows fonts or certain AutoCAD compiled Shape fonts (shx) may be used. AutoCAD shx fonts supported include shapes 1.0, shapes 1.1, and unifont 1.0. 

 

 


Lines

 

Copan supports user defined one dimensional line types.  One dimensional line types consists of combinations of lines and spaces along the path of the line or arc.  Line type definitions may be loaded from an AutoCAD .LIN format file.   

 

 

 

 

 

 


Functions

 

Select entity

 

Entities may be selected graphically for editing or deleting.  The different selection modes are:

 

-          Pointing (exclusive). One entity at a time is selected by clicking on the entity.  If an entity is already selected, selecting another one with unselect the first one.

 

-          Point (accumulating).  Entities are selected by clicking on it. More than one entity may be selected in this manner.  Each entity selected is added to the list of already selected entities.

 

-          Rectangle (enclosing).  A rectangle is defined by clicking on two points forming the diagonal of a rectangle.  All entities totally within this rectangle are selected.

 

-          Rectangle (intersecting). A rectangle is defined by clicking on two points forming the diagonal of a rectangle.  All entities within this rectangle or intersected by this rectangle are selected.

 

-          Polygon (enclosing).  The enclosing polygon is defined by 3 or more points.  All entities totally within this polygon are selected.

 

-          Polygon (intersecting).  The enclosing polygon is defined by 3 or more points.  All entities within this polygon or intersected by this polygon are selected.

 

The Unselect function unselects all entities that have been selected.

 

 

Move entity

-          selected entities may be moved.

 

 

Rotate entity

-          selected Text and Insert entities may be rotated.

 

 

Delete entities

-          selected entities may be deleted.

 

 

Edit entity properties

-          graphic point coordinates

-          graphic properties such as layer, color, line type

 

 

Block functions

-          New block. Create a new block.

-          Edit block.  Edit an existing block

-          Add attribute to block.  Add attribute to block being edited.

-          Make block from map. Load a map into current map as a block.

-          Add blocks from map. Load blocks from another map.

-          Save.  Save the block being edited.

-          Close.  Quit editing the block.

 

 

Hide Points

-          toggles between showing points of the coordinate file as a background in CAD or not showing the points.

 

 

Split line

-          a selected line may be split into two lines

 

 

Intersect lines

-          two selected lines may be intersected to produce up to four lines

 

 

Copy parallel

-          copy a polyline and place it offset from the original location

-          post-processing is performed to clean the copied line of loops and knots

 

 

Explode polyline

-          break a selected polyline into individual line segments

 

 

Explode line-arc

-          break a line-arc compound line into individual line and arc segments

 

 

Explode inserts

-          replaces inserts with the graphical components of the reference block

 

 

Explode Viewport

-          creates a new drawing from an existing drawing with any viewports converted to actual graphic entities in paper space.

-          the exploded viewport entities can then be edited.

 

 

Measure

-          show bearing and distance between two points

 

 

 

Merge Drawings

-          all the opened drawings are merged into the active drawing resulting in only one drawing.

 

 

 

Zoom to Point

-          centre CAD window on user specified coordinates or point number and zoom in to user specified amount

 

 

Zoom In

-          graphically define the new view with a rectangle

 

 

Zoom Out

-          zoom out by a fixed factor

 

 

Zoom to Extents

-          show the whole drawing

 

 

Redraw

-          redraw the graphics in the viewing window

 

 

Note:  The above drawing functions may be aborted by pressing the “Esc” key.  This will allow you to abort the time consuming drawing of an extremely large file.

 

 

Manage Documents

-          select active drawing; multiple drawing may be opened

-          change drawing visibility; drawings may be turned off so they are not visible

 

 

Manage Layers

 

The Manage Layers functions allows the user to:

-          select active layer

-          add layer

-          delete layer

-          change layer color

-          change layer visibility

-          draw using layer color

 

 

 

Drawing options

-          separate options for model space and paper space

-          set styles for point, text, line, and insert

 

 

DWG In  !DWG!

-          import an AutoCAD DWG file

-          import only blocks option

 

 

DWG Out  !DWG!

-          export a Copan drawing to AutoCAD DWG file

 

 

Print

-          print a copy of the drawing to the Windows printer

 


Copan CAD Configuration and Options

 

Units

 

In Copan, the same units are used throughout.  The coordinate units, model space units, and paper space units are the same.  This applies to the sizing of symbols (Inserts), text and line widths in drawings as well.  They also use the same units.         

 

The relationship of the Copan unit to the real world is defined by the user.  The length of the Copan unit is defined in terms of metres.  You may set this using the “Options” function in the “Viewing & Printing” menu.         

 

   Model Unit (metres)

   Printer page units

 

 

Drawings

 

More than one drawing may be loaded into Copan CAD at any time.  However, you can edit only one, the active drawing, at a time.  You may set any drawing as the active drawing.  You can also decide which drawings are visible.  Use the “Manage Docs.” function in the “Viewing & Printing” menu.

 

    Active Drawing – only one drawing is active at a time.  Only an active drawing may be edited.

    Visibility – determines whether a given drawing is visible

           

 

Layers

   

Copan drawings may have layers.  Layer properties include name, colour, and visibility.  One layer is selected as the active layer and this is the layer to which new graphics are added.

 

The colour of a layer may be used to override the colour properties of graphic objects such a lines and text. 

 

Use the “Layers” function in the “Drawing” menu to add and delete layers and to set layer parameters.  You may also set the active layer through the pulldown list in the “Options” toolbar.

 

    Active Layer

    Name

    Colour

    Visibility

    Use Layer Colours

 

 

Space

 

Copan displays either Model space or Paper space at any given time.  You may select the space that you wish to work with the radio buttons in the “Options” toolbar.

 

    Model

    Paper

 

 

Blocks

 

You may create your own blocks graphically in Copan, import blocks from a second drawing, or create a block from a drawing.  

 

 

 

 

Fonts

 

Windows fonts and certain AutoCAD compiled Shape fonts (shx) may be used in Copan CAD. AutoCAD shx fonts supported include shapes 1.0, shapes 1.1, and unifont 1.0.   

 

Default fonts may be set for Model space and Paper space.  However, each text object may have its own font as the font is a property of a text object.  

 

AutoCAD fonts must be loaded before it is available for use in a drawing.  To load a font:

 

  1. Select Drawing – Options – Model Space
  2. Press the Placed Text button
  3. Press the Font Select button in the Text Style dialog window
  4. Click on the SHX Font list to see if the font you want is already defined
  5. If the font is not in the list, use the Browse button to locate and load the font file
  6. Click the radio button to select the SHX font as the default font

 

 

 

Viewport Insert / Text Drawing Sizes

 

Copan can be configured to set the sizes of Inserts and Text that are visible in a viewport in paper space independent of their sizes in model space.  The new sizes are driven by the viewport scale and a lookup table setup by the user.  This capability allows the user to easily tailor the symbol and text sizes in different scaled viewports.

 

 

Cursor / Coordinate Points

 

Users may add graphic objects in Copan CAD by using the cursor or specifying the point number of points stored in a Copan coordinate file.   You may select the input mode by pressing the appropriate radio button in the “Options” toolbar. 

 

The coordinate file must be opened for the “Pts. #” mode to work.  Before you open an existing drawing or create a new drawing, open the coordinate file that you wish to work with. 

 

For points, lines, and associated annotation created using coordinate file points, there is an added benefit of the link to the coordinate file which allows automatic graphics update from the coordinate file.  For graphics linked to coordinate file points, if you change the point coordinates in the coordinate file through Copan functions such as COGO, the next time you load the drawing with links to that coordinate file, the coordinates in the drawing will be updated from the coordinate file.  This includes text with calculated values such as distance and azimuth.    

 

 

Coordinate File Link

 

For drawings that have graphic objects created with coordinates from a coordinate file, you may turn the link to the coordinate file on or off.  Turning the link off prevents the drawing from being updated from the coordinate file although you can still use points from the coordinate file to create graphics.

 

 

Snap On / Off

 

When placing graphic points with the cursor, the Snap option give the user the ability to “snap” to the coordinate of an existing graphic point.

 

 

Orthogonal Mode

 

The orthogonal mode limits graphical vector input to azimuths of 0, 90, 180, and 270 degrees when creating lines, polylines, rectangles, and text.   

 

 

Coordinate File Points

 

A drawing may be linked to a coordinate file.  The points in the coordinate file may then be used to add graphics to the drawing or update graphics in a drawing.  The name of the coordinate file is stored with the drawing and may be edited.    

 

 

Graphics Attributes

  

Copan drawing graphics attributes are user configurable.  Model space and paper space each have their own configurations.  See the Options choice in the Drawing pulldown menu.

 

The options are the same for both model space and paper space.  The graphic attributes may be set for coordinate file point annotation, lines, text, and inserts.

 

 

 

 

If you are in the Cursor graphics input mode (as opposed to Coordinate file point input mode), you can quickly set the attributes of a new graphic through the “Style” button on the Options tool bar.

 

 

 

The “Style” button is aware of the CAD mode, that is, whether an Insert, Text, or Line (Polyline, Circle, Arc) is being added and will display the appropriate attribute dialog for editing. 
Below is a list of the graphics and their attributes:

 

Coordinate File Point Annotation

 

You may choose the type of symbol used to represent the point, its rotation, line style, and size.

 

You may also choose to optionally label the point number, name, code, note, and elevation.  The font, size, rotation, and offset of each label text may be customized.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lines

 

Lines may be drawn with these options:

 

Type

 

Weight – enter the width of the line in drawing units         

 

Colour

 

Annotation – optional.    

        Azimuth – calculated from line endpoints

        Distance – calculated from line endpoints

 

See Text options below for options available for Azimuth and    Distance.

 

 

 


Text

 

Text attributes include:

 

Font

 

Colour

 

Size

 

Offset

 

Placement

 

Bearing

   

 

Multi-Line Text

 

 

Multi-Line Text attributes include:

 

Font

 

Colour

 

Size

 

Line Width

 

Line Height

 

Rotation

Inserts

Insert attributes are:

 

Height

 

Width

 

Bearing

 

Line Weight

 

 

The line types used to draw the Insert are those of the referenced Block.     
Drawing Functions In Detail

 

Some functions to be aware of:

 

1. Paper space / model space selector. 

 

There are two radio buttons at the top of the Drawing window that are used to select Paper or Model Space.  They determine which model is displayed and to which model new graphics are added.

 

 

2. Draw Points

 

The Point function is used to draw points saved in a Copan coordinate file.  To use this function, you must have a Copan coordinate file open before you open a drawing file.

 

The Point tool opens the Add Points dialog.  Pressing the Style button opens the dialog that allows you to configure how each point is plotted.

 

 

 

You may specify the symbol (block) that is used to represent each point and whether any annotation such as point number or elevation is added.

 

 

 

 

 

 

 

 

 

 

 

 

There are different methods to determine which points are plotted.  (See Copan User Manual: Point Filters.)

 

 

This is an example of a point plotted with a cross, point number, and elevation.  The smaller point number also visible is the coordinate file representation of the point and is not actually in the drawing. 

 

 

3. Draw Line

 

Points in the Copan coordinate file can be used to draw lines.  In addition to the linework, the bearing and distance between two points may be drawn on the line.

 

The line style and line annotation are user defined.

 

 

 

Below is an example of a line drawn with no annotation.  The numbers seen are in the coordinate file and are not in the drawing.

 

 

 

 

The style of the line annotation may be changed.  This includes the placement, font type, size, and color.

 

 

 

Here is an example of a line with its bearing and distance annotated.  The values are calculated from the line end points automatically.

 

 


4. Draw Multi-Line Text

 

A block of text may be added to a Copan drawing without adding one line at a time.  The Multi-Line Text tool is found at the extreme right end of the CAD tool bar.  The Multi-Line Text dialog will appear when this tool is selected.

 

 

 

You may enter the text directly into the dialog box or you may import the text from a text file.  The text in the text entry form may also be saved to a text file for re-use or other purposes.

 

If you wish to add text with specific line breaks, set the line width wide enough to accommodate your widest line.  If you enter text without line breaks, the line width parameter will automatically break each line at a word at approximately the specified line width.

 

Use the line height parameter to set the vertical spacing from one line to the next.  The line height does not affect the font character height.

 

The rotation parameter is used to set the orientation of the text.  It is azimuth based with 0 degrees resulting in text oriented from bottom to top and 90 degrees oriented from left to right. 

 

After you have placed the multi-line text, you may select and edit it to fine-tune each of the parameters.


6. Select Graphics

 

The Select graphics function is used to choose graphics to be edited.  A single graphic or multiple graphic objects may be selected.     

 

The different selection modes are:

 

-          Pointing (exclusive). One entity at a time is selected by clicking on the entity.  If an entity is already selected, selecting another one with unselect the first one.

 

-          Point (accumulating).  Entities are selected by clicking on it. More than one entity may be selected in this manner.  Each entity selected is added to the list of already selected entities.

 

-          Rectangle (enclosing).  A rectangle is defined by clicking on two points forming the diagonal of a rectangle.  All entities totally within this rectangle are selected.

 

-          Rectangle (intersecting). A rectangle is defined by clicking on two points forming the diagonal of a rectangle.  All entities within this rectangle or intersected by this rectangle are selected.

 

-          Polygon (enclosing).  The enclosing polygon is defined by 3 or more points.  All entities totally within this polygon are selected.

 

-          Polygon (intersecting).  The enclosing polygon is defined by 3 or more points.  All entities within this polygon or intersected by this polygon are selected.

 

The Unselect function unselects all entities that have been selected.

 

The Select functions may be accessed from the Toolbar or by right clicking the mouse.

 

 

Selecting A Graphic In A Crowd

 

To select a single graphic object that is in a close group with other graphic objects, use the Pointing (exclusive) selection mode.  Click on the graphic object. If the wrong graphic is selected, click again and another object in that vicinity will be selected. Repeat until the correct graphic is selected.

 

To help you select a specific graphic item, you may use the Set Select Graphic Type function to specify a specific graphic type to be eligible for selection.

 

 

 

You may choose to have all graphic types eligible for selection or choose a single graphic type.  If you are having difficulty selecting a graphic item in a crowded area, use this function to limit the items to be selectable to a single type.

 

 

 

7. Explode Polyline

 

A polyline may be broken into individual lines with the Explode Polyline function.  First use the Select function and click on the polyline to select it.  The Explode Polyline function can then be used to break it into individual lines.

 

 

8. Explode Compound Line

 

A compound line, composed of multiple lines and arcs, may be broken into separate lines and arcs.  First use the Select function and click on the compound line to select it.  Next, use the Explode Compound Line function to break it into individual lines and arcs.

 

 

9. Explode inserts. 

 

All inserts in a drawing will be converted to graphic elements which make up the inserted

block.  This will convert the inserts from block references to actual graphic entities (lines, arcs, etc.) which may be edited.

 

 

10. Explode viewports. 

 

Explode Viewports is used to turn the graphics appearing in all viewports in paper space into graphic elements in paper space.  When this is done, the viewports no longer exist.    

 

The Explode Viewports function does not affect the active drawing but creates a new drawing with the exploded viewport.  You will need to save the new drawing to keep the Explode Viewports results.   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9. Right clicking the mouse in the drawing window will pop-up a menu with additional graphic functions.

 

 

 

 

 

11. Place Compound Line. 

 

A compound line or line string consists of multiple points (more than 2) which define a combination of line segments and circular curves placed end to end.  It is similar to a polyline except that it may include circular curves. 

 

 

To place a compound line in Cursor mode:

 

-          Select the Compound function.  A dialog with a list of possible point types will pop up. 

 

-          Click on the radio button to indicate the type of point you will place next.  This dialog box will stay on the screen until you click on the Finished or Cancel button.

 

-          Click on the screen to place the point.

 

-          If necessary, repeat steps b and c until you have placed all the points in this compound line.

 

The point types allowed for the next point to be placed will vary depending on what the last point placed was.  This aids you in placing arcs as part of the compound line.

 

When placing a compound line in Point mode, a dialog box will appear which allows you to define the points of the line.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New points in the line are added:

 

 

 

Below is an example of a compound line created using points from a coordinate file:

 

 

 

 

12. Place Viewport. 

 

Viewports are live views of model space graphics.  Viewports are placed in paper space. 

 

To place a viewport:

 

a. Select the Viewport function.  Copan will automatically switch to Model Space if necessary.

b. Adjust the area visible by panning and zooming if necessary.

 

c. Define the rectangular portion of model space to be visible in the viewport by clicking on the lower left and then the upper right.

 

 

 

 

 

d. A dialog box will then appear asking you to enter the scale and rotation that the viewport will appear in paper space. Press the “OK” button to add the viewport to paper space.

 

 

 

The viewport may be selected in paper space and adjusted after it is placed.  It may be moved or edited as required.

 

e. A dialog box will appear showing the model space view centre coordinates and provisional scale, rotation, and viewport location parameters.  You may edit these entries.  If you change the scale, press the “Estimate Size” button to calculate the paper space dimensions of the viewport. 

 

 

As you are using the existing drawing’s model space as the source of the view, leave the top input field (Map) blank.  This field is used if you wish to create a viewport that views a separate drawing’s model space.

 

Press “OK” to finalize the viewport.

 

 

 

 

 

 

 

 

 

 

 

Below is an example of two viewports in paper space with also text denoting the viewport scales of each viewport added.

 

 

13. Viewport Scale Dependent Inserts and Text

 

Inserts and text annotation appearing in viewports in paper space may be assigned specific sizes depending on the viewport scale.  Copan maintains a table which defines these values.  You can customize this table by editing and adding to it. 

 

When text and inserts are drawn in a viewport, Copan looks in this table to determine what size to them.  If an entry is found in the table for the viewport scale and graphic type, then the size of the text or insert is the size defined in the table entry.  If no matching table entry is found, then the viewport size will be the model space size factored by the viewport scale.

 

Scaling of inserts and text is optional and may been turned on or off.   

 

To view or edit the insert and text size table, select the Annotation Scales menu entry in the Drawing pull-down menu.  The sizes in the table are paper space units.

   

 

Use the “Apply scaling” box to turn the scaling on or off.

 

 

 

 

 

14. Intersections

 

Intersections may be performed in CAD and the resulting intersection point(s) may be saved to your coordinate file if one is open.

 

To intersect two graphic objects, select each one. Next, right click the mouse to call up the CAD popup menu and select “Intersect”. 

 

 

 

In this example, the calculated intersection point has been given the next free number in the coordinate file, 47, and the coordinate point edit screen has popped up, allowing you to view and edit the results.

 

 

 

 

 

 

 

 

 

 

 

 

 

15. Edit Graphics

 

The properties of a graphic item may be viewed and edited. 

 

1. Select the graphic.

 

2. Right click and select the Edit function.

 

 

 

A dialog window will appear displaying the properties of the selected graphic.  You modify the values and save the changes.

 

 

 

 

 

 

 

 

 

 

16. Creating Blocks

 

You may create custom blocks in Copan CAD. 

 

 

After calling up the New Block function, enter the name of your new block.

 

 

 

Use the available drawing functions to add graphics to your new block.

 

 

 

When you are finished your new block, Save it and Close it.  Your new block is now available to be inserted into your drawing.

 

Existing blocks may be edited in the same way as new blocks are created.

 

 

17. Add Blocks from Map

 

Blocks from a map file may be added to the active map.  When this function is chosen, a “Open File” dialog will appear to allow you to select the map that is to supply the blocks.  When a map file is chosen, the blocks in that file are loaded into the active map.  Only blocks with names not already defined are loaded. The number of blocks loaded is displayed when the function finishes.       

 

 

18. Adding a Map as a Block

 

A map may be added as a block to a second map.  This function requires that both maps have been opened in Copan.  You may use Model space or Paper space as the source. The dialog, shown below, lets you chose whether the graphics from Model or Paper space is used to form the block.  

 

 

 

 

 

19. DWG Import  !DWG!

 

AutoCAD DWG file may be imported into Copan CAD to be viewed and edited.  You may import the DWG into an existing drawing or new drawing.  You may also only import the blocks by checking the checkbox in the Import dialog.

 

 

 

20. DWG Export  !DWG!

 

Copan drawings may be exported to a AutoCAD DWG file.  Select DWG Out from the Drawing menu.

 

 

 


Creating a Plan

 

1. Open a coordinate file.  This will allow you to use the points in the coordinate file to place graphics.

 

2. Open a new drawing. 

 

3. Select Model space and add graphic elements in model space.  When adding text, select a text height that is most compatible with the scale at which most of your plots will be produced.  For example, if you wish to create a plan at scale of 1:1000 with plotted text height of 5mm, then set the text height to 5m (1000 x 0.005m).    

 

Also, try to only add text in model space that is directly linked to the coordinate file such as azimuth and distance annotation.  These text types may be automatically scaled in viewports in paper space.

 

Coordinate linked text types are also automatically updated should the associated coordinate values change.   

 

Other text, specific to a view or plot is best placed in paper space.

 

4. Select paper space.

 

5. Add drawing sheet.  If the drawing sheet is an insert, it is best to "explode" this insert so the individual components can be edited.

 

6. Add viewports.  Viewports are used to bring the model space graphics to paper space.  A viewport is placed in paper space on the drawing sheet and is a window into model space.  You specify the size of the viewport, the location of the viewport in paper space (on the drawing sheet), where the viewport is centred on model space, and the scale of the view.

 

The scale in the viewport is a simple ratio of the size in model space to the size in paper space.  The same units are used in paper space as in model space.  For example, if your units in Model space are metres, then the units in Paper space are also metres.     

 

Multiple viewports may be added.  Text sizing in different scaled viewports may be modified through the Annotation Scales option.

 

7. Add other graphics such as lines or text.  Size the text according to plotted height.  For example, if your units are metres, set text height to 0.005 if a plotted height of 5mm is desired. 

 

 

 

8. Plot the paper space drawing.

 

Alternatively, you may separate model space and paper space and place each in a different drawing.  This may be preferable for a larger project where you may have several drawings with different model spaces and several drawings with different paper spaces. 

 

Text which are geographically linked to a coordinate file such as azimuth and distance annotation can be created in one size in model space and displayed in paper space in different scales and sizes.

 

 

 

Plotting

 

Copan drawings can be plotted to any Windows printer (see User Manual: Viewing and Printing Graphics).

 

 

Editing Graphics in Paper Space

 

Graphics in paper space may be edited with the exception of viewport contents.  Viewports are windows into model space so while the viewport parameters such as location in paper space, scale, and extents may be changed, the contents of the viewport cannot be changed in paper space. 

 

There are two ways to edit the contents of a viewport.  The obvious method is to edit the graphics in model space.  This will affect every paper space viewport which windows onto the area of the changes in model space.  The second method is to "explode" the viewport which in effect breaks the link between the viewport and model space.  When this is done, the viewport is no longer a viewport in paper space looking into model space but is just a collection of graphic entities in paper space.  Now, the graphic entities which were previously visible as part of model space may be edited in paper space. 

 

Frequently Asked Questions

 

Q. Why are the DWG In and DWG Out menu items disabled?

 

Those features are only available in Copan Pro+DWG, not in Copan Pro.

 

 

Q. Why are inserts and text in a paper space viewport not scaled in proportion to what I see in model space?

 

A. It is likely that Copan has been configured to draw text and inserts to a specific size for the viewport scale.  This feature of Copan allows you to override the model space size of inserts and text when they appear in paper space.  Look at the “Annotation Scales” function found in the “Drawing” menu to view and edit the sizes that text and inserts will appear at different viewport scales.  You may also turn off this scaling function so that no scaling occurs.

 

 

Q. I cannot select any of the graphics (lines, text, etc.) in a drawing.  What is wrong?

 

A. Check that the drawing is selected as the active drawing.  If you have more than one drawing open, you can only select graphic entities in the active drawing.  Use the Manage Docs function or the Layers function to set the active drawing. 

 

 

Q. I have added some lines to Model space in my drawing but when I check a viewport in Paper space, the lines do not appear.  What is the problem?

 

A. Once again, this can happen if you have more than one map open in CAD.  For example, if you have two maps open and they share the same viewing areas in Model space and Paper space, then depending on what viewports are defined in each drawing, you may add lines to Model space which will not appear in Paper space because the are no viewports defined in the active drawing’s Paper space.

 

 

Q. I created a drawing using points in a coordinate file.  Now I don’t want the linework, etc. changing in the drawing when these points in the coordinate file are changed.  How can I do that?

 

A. In the Drawing – Options pulldown menu, there is a function Coord. File.  Use this function to clear the defined coordinate file.  This will break the link between the drawing and the coordinate file.

 

   

Q. I am trying to zoom into a certain area of a drawing and it is taking a long time to redraw because it is a large file.  I need to zoom in several times in order to show exactly the area that I want to view.  Is there a way to more quickly zoom to an area?

 

A. You can press the “Esc” key to abort the drawing process.  This will allow you to quickly zoom again once enough of the drawing has been displayed for you to refine your zoom.

 

 

Q. I am using the Cursor input mode to place various lines in a drawing.  I need to change the line type and colour frequently and it is time consuming to access the options function using the pulldown menu.  Is there another way to do this?

 

A. Yes.  You can use the “Style” button found in the Options toolbar.  The “Style” button is graphics mode sensitive so it will automatically pop up the correct attribute option dialog.  For example, if you are adding lines, pressing the “Style” button will open the Lines option dialog.