Drawing Tools - don't calculate during editing the anchors

[artson]

Hi,

I want to create a drawing tool which will do some calculations.
I don't want the dwg tool to be calculating while I'm moving any anchor point, as this could create problems or slow down the computer.

Which sentence must I add?
I do the calculations and render under the:

public override void OnRender(ChartControl chartControl, ChartScale chartScale)
{

Is this correct?
I imagine I must add some "if" sentence checking that I'm not editing any anchor anymore.

Thanks for your help!!

[NinjaTrader_ChrisL]

Hello artson, thanks for writing in.

The solutions will be highly dependent on the specific drawing tool you are making. First, you would need to avoid calculations within OnRender anywhere it is possible to avoid. The calculations that can not be avoided should be calculated when DrawingState is .Normal. All of the default drawing tools in the platform are available for study through the NinjaScript editor in the DrawingTools editor. Any simple drawing tool, like the Lines drawing tool would be a good reference for making a custom drawing tool.

Please let me know if I can assist any further.