On 05/07/2018 02:20 PM, Zhao Yidong wrote:
2.Iterate on every quadrature point in every cell, store them. (These points
are in real space right?)
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for(unsignedq=0;q<quadrature.size();++q){
Point<dim>point =fe_values.quadrature_point(q);
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3. Use fe.shape_value() to get shape value at every degree of a cell,
store_point is the point I store in the 2nd step.
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doubleshapeValue =fe.shape_value(i,store_point);// shape value
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This is your problem. 'store_point' lives in real space, but 'fe.shape_value'
wants a point on the reference cell. You need to call
fe.shape_value (quadrature.point(q));
Best
W.
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