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Load multiple objects on to Canvas once loading (Read 2567 times)

kelum Full Member Offline I Love MindFusion! Posts: 100 Joined: Mar 25^th, 2017	Load multiple objects on to Canvas once loading Apr 24^th, 2017 at 3:26am	Print Post
	I have a requirement to load few objects to the canvas once this Layout window open. For an example I want to Load 5 Rectangles 3 circles 2 triangles to the canvas once this is loading how can I do that , Actually I want to do this in programming level, not the way like following . create XML file then populate that XML file
	« Last Edit: Apr 24^th, 2017 at 5:55am by kelum »

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Slavcho YaBB Moderator Offline tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Load multiple objects on to Canvas once loading Reply #1 - Apr 24^th, 2017 at 6:55am	Print Post
	You can create an instance of respective node type and add it to Diagram.Nodes collection, or call shortcut methods provided by Diagram.Factory - Code var node1 = new ShapeNode(); node1.Bounds = new Rect(100, 100, 60, 60); node1.Shape = Shapes.Rectangle; diagram.Nodes.Add(node1); var node2 = diagram.Factory.CreateShapeNode( 100, 200, 60, 60, Shapes.Ellipse);


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kelum Full Member Offline I Love MindFusion! Posts: 100 Joined: Mar 25^th, 2017	Re: Load multiple objects on to Canvas once loading Reply #2 - Apr 24^th, 2017 at 5:38pm	Print Post
	is it possible to load these Nodes like following shapes in programming level 1. Linear 2. Zig-Zag 3. U shape


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Slavcho YaBB Moderator Offline tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Load multiple objects on to Canvas once loading Reply #3 - Apr 24^th, 2017 at 6:02pm	Print Post
	Yes, calculate X,Y and RotationAngle values from the value of an integer loop counter depending on the scenario - Code for (int i = 0; i < 5; i++) { diagram.Factory.CreateShapeNode( 100 + i * 80, 100, 60, 30, Shapes.Rectangle); } for (int i = 0; i < 5; i++) { var node = diagram.Factory.CreateShapeNode( 100 + i * 60, 200, 60, 30, Shapes.Rectangle); node.RotationAngle = 45; } Try doing 3 as an exercise, you'll just need three separate loops for each side of the U and special handling for the corner nodes (at index count/3 and 2*count/3).


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kelum Full Member Offline I Love MindFusion! Posts: 100 Joined: Mar 25^th, 2017	Re: Load multiple objects on to Canvas once loading Reply #4 - Apr 25^th, 2017 at 9:01am	Print Post
	is it possible to allow to create these node that aligning with Straight Line or U Line. ? 1. Straight Line 2. U line Here the scenarios I'm trying to populate these node 1. Top of the Straight Line, Create Nodes After each Inch, Left to Right 2. Bottom of the Straight Line, Create Nodes After each Inch, Left to Right 3. Inside the U shape, create nodes, from bottom line of the U shape, bottom line center to left, then bottom line center to right, then left line of the U shape, bottom to up then right line of the U shape, bottom to up 4. Outside the U shape, create nodes, from bottom line of the U shape, bottom line center to left, then bottom line center to right, then left line of the U shape, bottom to up then right line of the U shape, bottom to up


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Slavcho YaBB Moderator Offline tech.support Posts: 3154 Joined: Oct 19^th, 2005	Re: Load multiple objects on to Canvas once loading Reply #5 - Apr 25^th, 2017 at 10:55am	Print Post
	Use this method to create nodes along a line segment, call it three times for the U shape specifying corresponding end points as arguments - Code void CreateNodesAlongSegment( double x1, double y1, double x2, double y2, double nodeDist, double nodeWidth, double nodeHeight) { double dx = x2 - x1; double dy = y2 - y1; double segmentLen = Math.Sqrt(dx * dx + dy * dy); // normalize direction vector dx /= segmentLen; dy /= segmentLen; for (double offset = 0; offset < segmentLen; offset += nodeDist) { double nodeCenterX = x1 + dx * offset; double nodeCenterY = y1 + dy * offset; diagram.Factory.CreateShapeNode( nodeCenterX - nodeWidth / 2, nodeCenterY - nodeHeight / 2, nodeWidth, nodeHeight); } } It will also work for inclined lines.


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