
Measure Area and Path
Click on the Measure Area and Path tool (or M + A) to activate the tool. As you move your cursor you will notice the following:
 Horizontal laser lines are projected on all 3D objects and terrain in the CityEngine scene. This visually shows the vertical height of the cursor projected onto terrain and objects. This is helpful to see the heights of objects relative to other objects. For example, you can hover on top of a smaller building and see that exact height highlighted on another building.
 The tool highlights edges, faces, and vertices in all object's geometry where the cursor can snap to:
 Vertices have a large orange circle.
 Edges display an orange line and a small circle as you move the cursor along the line.
 Faces are highlighted with a shaded orange.
Procedural models will not have highlighted faces. This is a known limitation.
Start measuring
Click on a face, edge or vertex to create a starting point for measuring a path or an area. As the tool moves through objects and terrain, the tool fades to indicate that it is hidden behind that surface.
Path
As you move the cursor, you will notice the following:
 A solid line will label the distance between the starting point and your cursor.
 As you place points, the tool will label the total length of the path up to the last point placed. The next segment will dynamically label the length as you move your cursor.
 Press Ctrl+Z to go back to the previous segment of the path.
Area
As you create the path, press Enter at any point to close the path to the starting point to display the area and total length of the path, also referred to as the perimeter. An orange checkered polygon highlights the area on the plane that make up the points.
When the points are not on the same plane, a vertical or horizontal plane will display depending on the angle of the plane for the polygon:
Vertical plane
For a vertical plane, a vertical polygon will display through the first point and an estimated center of all the points. In addition, if there is horizontal distance between the starting point and the other points, a solid orange horizontal line will display the distance between the starting point and the point furthest away from it.
Horizontal plane
For a horizontal plane, a horizontal polygon will display through the highest point. In addition, if there is vertical distance between the points, a solid orange vertical line will display the distance between the lowest point and the highest point.
The longest side will display the perimeter of the polygon. Once the path is closed and the area and perimeter is displayed, you can press Ctrl+Z or Ctrl+Y to cycle forward and backward through all previous results of polygon areas and perimeters.
There is a known limitation with selfintersecting polygons displaying incorrect areas.
Navigate your scene as you measure
Use the modifier navigation shortcuts to rotate/ tilt, dolly/zoom, and track/pan the scene as you move the cursor.
 ALT + LMB to rotate/tumble
 ALT + MMB to track/pan
 ALT + RMB to dolly/zoom
The Measure Area and Path tool is still visible when it is blocked by buildings, terrain, and other 3D objects. The tool fades similarly as it does when going through objects and is hidden behind the surface.
Reset tool
At any point you wish to start the measurement over, press Esc. This will remove the current path. Click again to start measuring.
Adjust the measurements
Adjust either point to change distances. Hover near the point to activate the option to move the point either by dragging the ball and or pulling the handles.
Snap to another space, edge, face, or vertex
Click on the ball to move the point to snap to geometry edges, faces, or vertices that are highlighted when you get close.
Move the point along either the x, y, or z axis
Drag the x, y, z handles to move along the x, y, or z axis.
As you move along these axes the point may move away from the geometry it was snapped to. To snap back to the geometry, click on the ball and the snapping options will appear again.
Change the measuring units
You can change the units by changing the coordinate system in the viewport.
 Click .
 Choose a coordinate system and the tool will reflect the unit of that coordinate system.
Copy your measurement
You can copy out your measurements by accessing the Log.
 Click to open the Log.
 Double click the entry with your measurement and the Event Details menu opens.
 Copy and paste the measurements to another document.
See also
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