ACCEPTED SOLUTION
Accepted Solutions
Lourival Mendes wrote:
Dear All,
I want to make a contour plot from a Matrix 2D which I can do, but the axes X and Y are labeled as 1, 2, 3, and so on. How can I change it to represent the real values?
Just to clear the question. The matrix is the result of a Heat transfer analysis on which each cell represent an (x,y) position with the value representing the temperature on that position.
As Richard says, you need to create arrays of your x and y values that are conformable to the results matrix; if m = rows(x) and n = rows(y), then the 'x' matrix should have n columns all filled with x, and the 'y' matrix should have m rows all filled with y (transposed).
There is a long-standing request to provide variants of CreateMesh that allow the user to provide x and y vectors rather than let the function apply a default grid (or, just as bad, have to go poking around in the dialog box to set min/max axis values and number of grid points).
It could possibly be done by allowing the CreateMesh arguments s0 and t0 to be vectors or scalars, for example, with Mathcad assuming that only two arguments (in addition to the target function) implies that s1 is missing and that s0 and t0 are either a vector of values to evaluate at each grid point or represent the upper limit of a 0..s0/t0 range with the default sgrid/tgrid = 20.
Stuart
Lourival Mendes wrote:
Dear All,
I want to make a contour plot from a Matrix 2D which I can do, but the axes X and Y are labeled as 1, 2, 3, and so on. How can I change it to represent the real values?
Just to clear the question. The matrix is the result of a Heat transfer analysis on which each cell represent an (x,y) position with the value representing the temperature on that position.
As Richard says, you need to create arrays of your x and y values that are conformable to the results matrix; if m = rows(x) and n = rows(y), then the 'x' matrix should have n columns all filled with x, and the 'y' matrix should have m rows all filled with y (transposed).
There is a long-standing request to provide variants of CreateMesh that allow the user to provide x and y vectors rather than let the function apply a default grid (or, just as bad, have to go poking around in the dialog box to set min/max axis values and number of grid points).
It could possibly be done by allowing the CreateMesh arguments s0 and t0 to be vectors or scalars, for example, with Mathcad assuming that only two arguments (in addition to the target function) implies that s1 is missing and that s0 and t0 are either a vector of values to evaluate at each grid point or represent the upper limit of a 0..s0/t0 range with the default sgrid/tgrid = 20.
Stuart
