private void sliderChangedRecalculateTheMatrix() { double a = sliderZ.getValue() / 1000.0; double b = sliderY.getValue() / 1000.0; double c = sliderX.getValue() / 1000.0; matrixRx.set(MatrixTools.createRotationRxMatrix(c)); matrixRy.set(MatrixTools.createRotationRyMatrix(b)); matrixRz.set(MatrixTools.createRotationRzMatrix(a)); matrix.set(MatrixTools.createRotationMatrix(a, b, c)); parent.refreshCanvas(); }