Bound size of raster map
Syntax
mapRequest = boundImageSize(mapRequest, imageLength)
Description
mapRequest = boundImageSize(mapRequest, imageLength) bounds
the size of the raster map based on the scalar imageLength.
The scalar mapRequest is a WMSMapRequest object.
The double imageLength indicates the length in
pixels for the row (ImageHeight) or column (ImageWidth)
dimension. The row or column dimension length is calculated using
the aspect ratio of the Latlim and Lonlim properties
or the aspect ratio of the XLim and YLim properties, if
they are set.
Image dimensions are measured in geographic or map coordinates. The
longest image dimension is set to imageLength,
and the shortest is set to the nearest integer value that preserves
the aspect ratio, without changing the coordinate limits. The maximum
value of imageLength is the maximum value of the MaximumHeight and MaximumWidth properties.
Example
Read and display a composite of multiple layers representing
the EGM96 geopotential model of the Earth, coastlines, and national
boundaries from the NASA Globe Visualization server.
The rendered map has a spatial resolution of 0.5 degrees.
vizglobe = wmsfind('viz.globe', 'SearchField', 'serverurl');
coastlines = vizglobe.refine('coastline');
national_boundaries = vizglobe.refine('national*bound');
base_layer = vizglobe.refine('egm96');
layers = [base_layer;coastlines;national_boundaries];
request = WMSMapRequest(layers);
request.Transparent = true;
request = request.boundImageSize(720);
overlayImage = request.Server.getMap(request.RequestURL);
figure
worldmap('world')
geoshow(overlayImage, request.RasterRef);
title(base_layer.LayerTitle)
Compare the map with the contoured data from 'geoid.mat'.
geoid = load('geoid');
coast = load('coast');
figure
worldmap('world')
contourfm(geoid.geoid, geoid.geoidrefvec, 15)
geoshow(coast.lat, coast.long)
title({'EGM96 Contoured Data', '(geoid.mat)'})
 | WMSMapRequest class | | Time property (WMSMapRequest) |  |
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