vuerest.blogg.se - Convert raster to vector psp

#Convert raster to vector psp psp#

Click the "Choose Files" button to select multiple files on your computer or click the dropdown button to choose an online file from URL, Google Drive or Dropbox. If the elevation units are meters and the dataset is geographic (degrees), you would multiply the unit conversion factor (1.0) by the exaggeration factor (10.0)-which would be a Z Factor of 10.1. For example, if both elevation and dataset coordinates are meters and you want to exaggerate by a multiple of 10, the scaling factor would be the unit conversion factor (1.0) multiplied by the vertical exaggeration factor (10.0)-which would be a Z Factor of 10. To apply vertical exaggeration, you must multiply the conversion factor by the exaggeration factor. If your elevation units are not in meters, use the Arithmetic function to convert your elevation to meters before using the Slope function. If your data is using a geographic coordinate system (such as a DTED in GCS_WGS 84), where the linear units are in degrees and your elevation is in meters, use a conversion factor of 1, and the system will automatically convert your linear degrees to meters. Your DEM's elevation units are feet and your mosaic dataset's unitsĪre meters, you would use a value of 0.3048 to convert yourĮlevation units from feet to meters (1 foot = 0.3048 meters). If your data is in a projected coordinate system and your elevation and linear units of measure are different, you will need to define a z-factor to account for the difference. If the units of measure for the z (elevation) units are the same as the x,y (linear) units, the z-factor is 1. Learn more about how Slope works Unit conversion These pixels will be populated with NoData, since it will reduce any sharp edge effects that may occur.

Checked-Bilinear resampling will be used within the slope, except along the edges of the rasters or beside pixels of NoData.

Unchecked-Bilinear resampling will be applied uniformly to resample your slope.

When overlapping pixels are available, these areas of NoData will display the overlapping pixel values instead of being blank. The output pixels along the edge of a raster or beside pixels without a value will be populated with NoData therefore, it is recommended that this option be used only when there are other rasters with overlapping pixels available. Using this option will avoid any resampling artifacts that may occur along the edges of a raster. This parameter is only valid when the Scaling type is Adjusted. It controls the rate at which the Z Factor changes. Pixel Size Factor accounts for changes in scale as the viewer zooms inĪnd out on the map display. It is the exponent applied to the pixel size term in the equation that controls the rate at which the Z Factor changes to avoid significant loss of relief. Pixel Size Power accounts for the altitude changes (or scale) as the viewer zooms inĪnd out on the map display.

To add vertical exaggeration for visual effect.

Horizontal coordinate units of the dataset, which may be feet, The Z Factor is a scaling factor used to convert the elevation values for two purposes:

#Convert raster to vector psp psp#

The z-factor is adjusted using the following equation:Īdjusted Z Factor = (Z Factor) + (Pixel Size) PSP × PSF)

This is recommended when using worldwide datasets-particularly when using slope as a surface for visualization. It uses the Pixel Size Power (PSP) and Pixel Size Factor (PSF) values, which account for the resolution changes (scale) as the viewer zooms in and out. SCALED-The inclination of slope is calculated the same as DEGREE, but the z-factor is adjusted for scale.

As the surface becomes more vertical, the percent rise becomes increasingly larger. A flat surface is 0 percent rise, whereas a 45-degree surface is 100 percent rise. PERCENT_RISE-The inclination of slope is calculated as percentage values. There are three options for the Output Measurement:ĭEGREE-The inclination of slope is calculated in degrees. The inclination of slope can be output as either a value in degrees or percent rise. The inputs for this function are the following: Parameter name It is six times faster, and the approximation error is always less than 0.3 degrees.

This Slope function uses an accelerated ATan function. You can add the Colormap function to specify a particular color scheme, or allow the person viewing the mosaic to modify the symbology with their own color scheme. It's the first derivative of a DEM.īy default, the slope appears as a grayscale image. Slope represents the rate of change of elevation for each digital elevation model (DEM) cell.