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The size will be stoed in the user settings afterwards.
Contours
The contour button calculates contours on the fly for the displayed grids. Since 2021.01 showing contours also works for irregular grids and over multiple grids displayed as the same time. When the contour button is pressed bilinear interpolation is used to calculate a value for every pixel individually. The grid cell for every pixel at the current map extent and zoom level is known by the grid display. The neighbor cell detection is done at screen pixel level and works for existing configurations. The interpolation is automatically switched off for individual cells that are not rectangular or rotated more than 10 degrees compared to the screen. The contours are calculated for the interpolated pixel values for the current zoom extent. The contour button is disabled for point data and when contours are configured for a different parameter on top of the parameter that is using the colors from the legend.
Extracting data from the Spatial Display
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