Video Measurement
Feature Description
The video measurement feature includes distance, area, and height measurements on video maps. After configuring the video parameters, it can transform video pixel coordinates into WGS 1984 coordinates to calculate distances and areas within drawn regions.
Feature Entry
- Video Maps Tab -> Measure Group.
Operation Steps
- Unit: It is recommended to set measurement units before operation. Click the Video Maps -> Measure -> Unit button to configure distance and area units in the dialog box, supporting automatic unit conversion.
- Distance Measure: In the Video Maps Tab -> Measure Group, select the Distance drop-down button to choose between Spatial Distance and Horizontal Distance measurement modes.
- Spatial Distance: Suitable for measurements in 3D scenes.
- Horizontal Distance: Used when measuring areas with terrain data or model data, calculating horizontal distance between start and end points.
- Area Measure: Click Video Maps -> Measure -> Area or select Spatial Area from the drop-down button. Draw the target area on the video dataset, with results displayed as polygons and measurement values.
- Height Measurement: Click the Height button in the Video Maps Tab -> Measure Group to measure object heights in video datasets. For accuracy, measure features like buildings or road signs.
- Clear: Use the Clear button to remove previous measurement records when needed.
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