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Drawing in Capture

RonScott

 All,

One thing I've always been frustrated by is drawing symbols in Capture. I've been relying on finding a symbol that looks similar and adapting the symbol to my use. For example, I needed to draw a XOR gate. I used two Bezier curves to draw the first two curves (see attachment) but can't get the arcs to cooperate to finsh up the symbol. I used Mentor Graphics DxDesigner for quite a long time and could create proper looking symbols quickly. Does anyone out their have the "special sauce" to create symbols effectively? Are there any unpublished commands (e.g. SHIFT-arc) that will ecpedite my requirements?

 

  • oldmouldy
    Make the Bounding box a lot larger than the graphics that you want to create and resize it back to the required size to bound the graphics once completed. Use control+left-click+drag to copy objects, if you get one arc as required, you can take a copy with this combination. Take a look at the 74LS86 in the Gate.olb, this was created before the Bezier curve option was added. Also take a look at the Quick Reference Card, capqrc.pdf in the doc\capqrc directory of the installation, this lists all the keyboard commands for the various editing modes in Capture.
  • avinna
    To be able to effectively draw the XOR symbol using Bezier curves you might want to do the following: 1. Draw a bezier curve using the control points as shown in the attached image 2. Bring up the Preferences dialog (Options->Preferences), navigate to the "Grid Display" tab and un-check the "Pointer snap to grid" option under the "Part and Symbol Grid" section. 3. Copy the Bezier curve and paste it. You can now move it off-grid to better align with the existing Bezier curve 4. Before placing the pins ensure that you have the "Pointer snap to grid" option back on. Hope this helps.
  • RonScott

    Thank you for your input. Please be aware I was only starting with two Beziers. I was having trouble with the arcs I needed to create the rest of the XOR symbol.

    Regards,

    Ron Scott

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