MATLAB 帮助中心
Convert world coordinates to grid indices
ijGrid = world2grid(map,xyWorld)
ijGrid = world2grid(map,xyWorld) converts world coordinates in the map to grid indices.
ijGrid
map
xyWorld
example
collapse all
Create an empty occupancy map with a width and height of 10 meters.
map = occupancyMap(10,10);
Get grid indices from world coordinates.
[xWorld,yWorld] = meshgrid(0:0.5:2); ij = world2grid(map,[xWorld(:) yWorld(:)]);
Create an empty map of 10-by-10 meters in size.
map = occupancyMap(10,10,10);
Update the occupancy of specific world locations with new probability values and display the map.
x = [1.2; 2.3; 3.4; 4.5; 5.6]; y = [5.0; 4.0; 3.0; 2.0; 1.0]; pvalues = [0.2; 0.4; 0.6; 0.8; 1]; updateOccupancy(map,[x y],pvalues) figure show(map)
Inflate the occupied areas by a radius of 0.5 m. The larger occupancy values overwrite the smaller values.
inflate(map,0.5) figure show(map)
Get the grid locations from the world locations.
ij = world2grid(map,[x y]);
Set occupancy values for the grid locations.
setOccupancy(map,ij,ones(5,1),'grid') figure show(map)
occupancyMap
mapLayer
multiLayerMap
signedDistanceMap
Map representation, specified as a occupancyMap, mapLayer, multiLayerMap, or signedDistanceMap object.
World coordinates, specified as an n-by-2 matrix of [x y] pairs, where n is the number of world coordinates.
[x y]
Data Types: double
double
Grid positions, returned as an n-by-2 matrix of [i j] pairs in [row col] format, where n is the number of grid positions. The grid cell locations start at (1,1) and are counted from the top left corner of the grid.
[i j]
[row col]
expand all
The world2grid function now supports the signedDistanceMap object as a new map representation for the map argument.
world2grid
binaryOccupancyMap
grid2world
world2local
You clicked a link that corresponds to this MATLAB command:
Run the command by entering it in the MATLAB Command Window. Web browsers do not support MATLAB commands.
选择网站
选择网站以获取翻译的可用内容,以及查看当地活动和优惠。根据您的位置,我们建议您选择:。
您也可以从以下列表中选择网站:
如何获得最佳网站性能
选择中国网站(中文或英文)以获得最佳网站性能。其他 MathWorks 国家/地区网站并未针对您所在位置的访问进行优化。
美洲
欧洲
亚太
联系您当地的办事处