MATLAB: Facing a PointLocation error while using ginput !

pointlocation

Hello! HELP PLEASE! I am using the PointLocation in my script but I keep getting this error 'Undefined function 'PointLocation' for input arguments of type double', knowing that the input is a point coordinates (x,y) obtained using 'ginput' function and a delaunay triangulation (DT) such that: T= PointLocation ( DT, x,y)

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Lowercase p

See the older https://www.mathworks.com/help/matlab/ref/delaunaytri.pointlocation.html and the newer https://www.mathworks.com/help/matlab/ref/triangulation.pointlocation.html

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MATLAB: How to make delaunayTriangulation object from points and connectivity in 3D

You should use the function triangulation for this. Read about this.

https://in.mathworks.com/help/matlab/ref/triangulation.html

MATLAB: DelaunayTri output relation to inputs

Analyze this code, I think that it will help you to understand DelaunayTri:

[tri_x tri_y] = meshgrid(-1:.5:1);
tri_x = tri_x(:);
tri_y = tri_y(:);
dt = DelaunayTri(tri_x,tri_y);
vertexNumber = 13;
t = vertexAttachments(dt,vertexNumber);
fprintf('Simplices attached to vertex %i: ',vertexNumber)
disp(t{1})
% visualization
triplot(dt);
hold on
vxlabels = arrayfun(@(n) {sprintf('P%d', n)}, (1:25)');
Hpl = text(tri_x, tri_y, vxlabels, 'FontWeight', 'bold', 'HorizontalAlignment',...
    'center', 'BackgroundColor', 'none');
ic = incenters(dt);
numtri = size(dt,1);
trilabels = arrayfun(@(x) {sprintf('T%d', x)}, (1:numtri)');
Htl = text(ic(:,1), ic(:,2), trilabels, 'FontWeight', 'bold', ...
    'HorizontalAlignment', 'center', 'Color', 'blue');
triplot(dt(t{:},:),tri_x,tri_y,'Color','r')
hold off
axis off

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Related Solutions

MATLAB: How to make delaunayTriangulation object from points and connectivity in 3D

MATLAB: DelaunayTri output relation to inputs

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