vector visualization: use rel_scaling in warp mode
vector visualization: use rel_scaling in warp mode

rc/sfepy,BubuLK/sfepy,vlukes/sfepy,vlukes/sfepy,olivierverdier/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,BubuLK/sfepy,olivierverdier/sfepy,rc/sfepy,lokik/sfepy,lokik/sfepy,vlukes/sfepy,RexFuzzle/sfepy,sfepy/sfepy,sfepy/sfepy,rc/sfepy,lokik/sfepy,RexFuzzle/sfepy,sfepy/sfepy,RexFuzzle/sfepy,lokik/sfepy,olivierverdier/sfepy