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Measurement Tools

最終更新日: 11月 10, 2026•2 分 読了。
With the Tape Measure tool (go icon tape measure.png) and the Protractor tool (go icon protractor.png),  you can add a level of precision to your models by including accurate measurements when creating geometry. For more tips on using these measurement tools in your models, see Precise Modeling with Measurements.

Tape Measure

The Tape Measure tool helps you measure distances. In SketchUp for iPad, the Tape Measure tool has the following optional tool modes:

  • Guides – Tap the arrow under the Tape Measure tool to show the guide modes: 

  • Create Guide Points (icon create guide points) – Temporary reference spots in your model, helping you align, measure, or position objects with precision. Guide points are single points that you can use for inference while drawing or modeling. 
  • Create Guides (icon create guide lines) – Lets you place temporary reference lines, called guide lines, in your model.

  • Inference Locks - Activating one of these optional tool modes restricts drawing to a specific inference point:

    • Lock X (go icon inference lock red.png) - The X axis or Red plane.
    • Lock Y (go icon inference lock green.png) - The Y axis or Green plane.
    • Lock Z (go icon inference lock blue.png) - The Z axis or Blue plane.
    • Lock Parallel (go icon inference parallel.png) - Parallel to a selection or the last line drawn.
    • Lock Perpendicular (go icon inference perpendicular.png) - Perpendicular to a selection or the last line drawn.

The Tape Measure tool works just like the Line tool. See Input Method section in Line Tool for more information on how to use the Tape Measure tool with the different iPad input methods.

Protractor

The Protractor tool helps you create accurate angles in your model or measure existing angles. The Protractor tool does not have any optional tool modes.

Mouse or Touchpad

To use the Protractor tool with a mouse or touchpad:

  1. Select the Protractor tool.

  2. Tap and release to set the center of the arc. 

  3. Tap again at the desired radius.

  4. Move to your desired arc length.

Multitouch or Apple Pencil

To use the Protractor tool with multitouch or an Apple Pencil:

  1. Long press to set the center of the arc. 

  2. Drag and release at your desired radius. 

  3. Long press again and drag to determine the angle and create your arc.