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Subdivision tool

The Subdivision Tool is an advanced feature used to draw subdivision lines on a floor of a building. If you are starting out using CityCAD, we recommend that you avoid the subdivision tool until you are comfortable using the Route Tool.

You can choose the Subdivision Tool by clicking on the Subdivision Tool button on the CityCAD Toolbar.

Alternatively, if you are working in the Main Display Window and the last mouse click you made was in the 3D window, then press the keyboard shortcut 'D' to choose the select tool.

Drawing a Subdivision Line

You can only draw subdivision lines on floors within Building-type blocks (see introduction to CityCAD concepts) after the block has been 'exploded' to a specific floor.

To explode to a floor, right-click on the block and select 'Explode to Floor...', then select the floor on which you want to draw subdivisions.

Click and drag from any point - you will see a ghosted image of the subdivision line you are drawing. When you have positioned the mouse cursor at the desired end point of the subdivision line, release the mouse button and the line will be created.

Drawing Routes more precisely

Click once at the start point of your subdivision line. An image of the subdivision line will appear. Also the length of the subdivision line will be displayed in white text next to the mouse cursor.

You can then either:

You can cancel this drawing operation at any time by:


If you are using the Subdivision Tool, you can use the following shortcuts:

Hints and Tips

If you are drawing a subdivision line on an exploded floor and you find that your view is obscured by one of the 'exploded' floors above, you can either:

  • Hold down the mouse-wheel button and orbit the model until you can see the part of the floor you need to draw on, or
  • Hold down the Ctrl key and scroll the mouse wheel up - this will move the exploded floors up so they are no longer in the way.

Subdivision nodes appear as small triangles by default. Note that you can change the display size of subdivision node markers in the Display Preferences.

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