Setting a Shape
What is a Shape?
A Shape corresponds to the measure area to analyze.
A shape is defined in a 2D plan which is then projected on the 3D surface. Shape projected on surface can lead to a different shape.
How to create a Shape?
Select the area to shape.
From the Shape list, select the shape to create.
According to the shape selected, define the parameters.
The size of an area must at least be equal to 1 pixel.
Shape |
Description |
|---|---|
Rectangle Ellipse |
The area measured corresponds to the surface of the shape. Dimension and Center allow to define numerically the measurement area. |
Polygon |
The area measured corresponds to the surface of the shape. The table of points allows you to define as many points as you want and respectively define their position. |
User Line |
The area measured corresponds to the line displayed. For Horizontal and Vertical, Point 1 and Point 2 correspond to the position of the points on the edges of the map. |
Point |
The area measured corresponds to a unique pixel on the map. CAUTION: If you define a point to be projected on a boundary of a geometry to do
some measurement, the projection may be imprecise due to some rounding
operations, leading sometimes to incorrect measure values.
|
Polyline |
The area measured corresponds to the line displayed. The table of points allows you to define as many points as you want and respectively define their position. |
Area Section
The Area section allows you to define the Sampling to be used for the different measures of the shape.
For surface shapes, the shape is divided in a certain number of pixels. Each measure sample is located at the center of the pixel.