Deleting  border  vertex of matrix

This mode allows to delete a point (vertex) of matrix border. Press left mouse button to delete a separately selected vertex.

Choice of a vertex is made by move of cross in a work area without mouse button pressing. At  that the auxiliary line connects the cursor position and nearest object vertex.

Border saving is made at the moment of completion of executed operation.

At activation of Delete border vertex mode the matrix map is displayed entirely, without taking into account a border. After completion of the executed operation the displaying of matrix is restored into initial condition.

Way of activation of Delete border vertex mode:

In Matrix list dialog ( View \ Matrix list) choose a matrix.

Then press Properties button and in the appeared menu choose Edit border item. Move border vertex mode becomes more active. Press the right mouse button for appearance of the pop-up menu (the mouse cursor should be above the document). Choose in the appeared menu Delete border vertex item.