Hello
Code Client side :
<ndiag:Ruler runat="server" ID="ruler" Unit="Centimeter" >
<ndiag:DiagramView ID="canvasView" runat="server" ClientSideMode="Canvas"
Height="600" EnterInplaceEditScript="OnEnterInplaceEditScript"
Diagram-AlignToGrid="true"
AllowInplaceEdit="true"
AppletStartedScript="onLoaded" NodeSelectedScript="onNodeSelected" NodeDeselectedScript="onNodeSelected"
ClickedScript="canvas_Clicked" JsLibraryLocation="MindFusion.Diagramming.js"
NodeCreatedScript="onNodeCreated"
Diagram-ShowGrid="true"
Diagram-LinkTextStyle="Follow"
Diagram-LinkCrossings="Cut"
NodeClickedScript="NodeClickedScript" LinkClickedScript="OnLinkClickedScript"
LinkCreatedScript="onLinkCreated" NodeSelectingScript="OnNodeSelectingScript">
</ndiag:DiagramView>
</ndiag:Ruler>
Script :
function onLoaded(sender) {
debugger;
if (Tb_ModeDesignClient.GetText() == "BATIMENT") {
diagram.setMeasureUnit(MindFusion.Drawing.GraphicsUnit.Centimeter);
}

If I add the above code on the client side a diagram display problem is displayed

I found the bug. the problem appears when I add the following code (server side) :
var node1 = new OrgChartNode();
node1.Bounds = new RectangleF(0, 0, 1000, 1000);
node1.Image = @"/fond.png";
node1.Id = "Fond";
node1.ZIndex = -1;
canvas.Nodes.Add(node1);

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I used this code to insert a background image at the position (0,0) in relation to the ruler.
I want insert nodes in positions with the code.
for example
the number 1 presents the bottom of the diagram
the number 2 presents the background image that I want to position in the coordinates (0,0)
the number 3 presents the image that I want to position in the coordinates (7,4)
number 4 presents the image that I want to position in the coordinates (9,2)

how can I achieve a result as shown in this attached image.