Drawing Library/Resources

[90bideven]

Hi all. I have written a few simple indicators using a combination of the strategy builder and my own coding. I use Draw.Dot and Draw.Diamond a fair bit above and below price bars. If initiating the code in the strategy builder I always select "AutoScale" for their size, but when they render on the chart they appear larger than I like...especially when I zoom out to see a lot of data in one panel. I see other, more custom indicators that have much smaller dots and diamonds...where does one access these types of drawing items? Thanks.

90

[NinjaTrader_ChelseaB]

Hello 90,

These drawing objects can't be resized.

You would have to custom render your own objects if you want that.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/indicator-development/97796-how-to-anchor-grid-control-to-chart?p=786906#post786906

https://ninjatrader.com/support/helpGuides/nt8/rendering.htm

[aligator]

Hi all. I have written a few simple indicators using a combination of the strategy builder and my own coding. I use Draw.Dot and Draw.Diamond a fair bit above and below price bars. If initiating the code in the strategy builder I always select "AutoScale" for their size, but when they render on the chart they appear larger than I like...especially when I zoom out to see a lot of data in one panel. I see other, more custom indicators that have much smaller dots and diamonds...where does one access these types of drawing items? Thanks.

90

The easiest solution is instead of using Draw.Dot and Draw.Diamond simply use the Draw.Text syntax that includes Font group and Font size. Such as bellow:

 textFont                 = new SimpleFont("Wingdings",12 );

Draw.Text(NinjaScriptBase owner, string tag, bool isAutoScale, string text, int barsAgo, double y, int yPixelOffset, Brush textBrush, SimpleFont font, TextAlignment alignment, Brush outlineBrush, Brush areaBrush, int areaOpacity)

Example:

Draw.Text(this,"My Obj"+CurrentBar.ToString(), true, "t", 0, middle, 0, Brushes.Red, textFont , TextAlignment.Center, Brushes.Transparent, Brushes.Transparent, 50);

Simply use characters from Wingdings and Webdings font groups. Use any character that you like (dot, diamonds, triangles, etc. ). Now you can use your custom font size as small or large as you want. If you change your bar size your markers will not change.

[90bideven]

Cool, thanks to the both of you, I will dig into these solutions.