swap cmap and halfdim to prevent docs error in PlotWidget
swap cmap and halfdim to prevent docs error in PlotWidget

srinathv/vispy,RebeccaWPerry/vispy,kkuunnddaannkk/vispy,jdreaver/vispy,RebeccaWPerry/vispy,srinathv/vispy,QuLogic/vispy,kkuunnddaannkk/vispy,inclement/vispy,RebeccaWPerry/vispy,bollu/vispy,drufat/vispy,kkuunnddaannkk/vispy,michaelaye/vispy,ghisvail/vispy,bollu/vispy,drufat/vispy,Eric89GXL/vispy,julienr/vispy,srinathv/vispy,jdreaver/vispy,QuLogic/vispy,michaelaye/vispy,ghisvail/vispy,drufat/vispy,Eric89GXL/vispy,inclement/vispy,michaelaye/vispy,julienr/vispy,inclement/vispy,dchilds7/Deysha-Star-Formation,bollu/vispy,jdreaver/vispy,julienr/vispy,ghisvail/vispy,QuLogic/vispy,dchilds7/Deysha-Star-Formation,Eric89GXL/vispy,dchilds7/Deysha-Star-Formation