GM_ViewShedParams_t Class |
Namespace: GlobalMapper.Types
The GM_ViewShedParams_t type exposes the following members.
Name | Description | |
---|---|---|
GM_ViewShedParams_t |
Default Constructor
|
Name | Description | |
---|---|---|
mAngleEnd | End angle in radians for radar sweep | |
mAngleStart | Start angle in radians for radar sweep | |
mAtmosphericCorr | Atmospheric correction value (1.0 for none) | |
mCenterPoint | Center point in global coordinates | |
mColor | Color to display view shed data in | |
mDesc | View shed description | |
mFilterRect | Optional rectangle for filtering view shed to a certain area of interest | |
mFresnelFreq | Frequency (in GHz) to use for testing clearance of first Fresnel zone (use 0.0 to not do Fresnel testing) | |
mFresnelPctClear | Percentage of first Fresnel zone that must be clear of obstacles (use 0.6 for 60%). If 0 is specified, the default of 60% is used. | |
mGenCoveragePolys | Generate area/polygon features for the covered area (these are vector and exportable to vector formats) | |
mRadius | Search radius in meters | |
mReceiverAngle | Angle (in degrees) above horizon to test at (NULL for none) | |
mReceiverAngleEnd | Angle (in degrees) above horizon to stop test at (NULL for none) - if this and mReceiverAngle are provided, an angle range view shed test is done (like a flashlight beam) | |
mReceiverHeight | Height at which transmitter must be visible | |
mReceiverHeightAbs | Is the receiver height absolute or relative to the ground? | |
mShowHiddenPoints | Make hidden points visible instead of viewable points. | |
mShowProgress | Display view shed calculation progress? | |
mTransmitterHeight | Transmitter height in meters | |
mTransmitterHeightAbs | Is the transmitter height absolute or relative to the ground? | |
mUseEarthCurvature | Use the curvature of the earth in the analysis? | |
mVectorElevsAbs | Are vector elevations absolute (i.e. relative to sea level) or relative to ground level? | |
mVectorLayerList | List of vector layers to use features with elevation attributes from | |
mVectorLayerListCnt | Number of vector layers in list | |
mXSpacing | X sample spacing (use 0.0 for default spacing) | |
mYSpacing | Y sample spacing (use 0.0 for default spacing) |