topic Re: Creating IPictureElement in ArcObjects SDK Questions

Creating IPictureElement

AnatoliiTerentiev — Fri, 29 Jun 2012 07:08:14 GMT

Dear Gurus!
Can anyone give a link to an example of creating IPictureElement (arcgis engine 2010, c#) on the map?

PS. Next is an example of creating TextElement:

        private void showText(double x, double y)
        {
            IGraphicsContainer graphicsContainer = axMapControl1.Map as IGraphicsContainer;
            IElement element = new TextElementClass();
            ITextElement textElement = element as ITextElement;

            //Create a point as the shape of the element.
            IPoint point = new PointClass();
            point.X = x;
            point.Y = y;
            element.Geometry = point;
            textElement.Text = "Hello World";
            graphicsContainer.AddElement(element, 0);

            //Flag the new text to invalidate.
            IActiveView activeView = axMapControl1.Map as IActiveView;
            activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
        }

Re: Creating IPictureElement

AnatoliiTerentiev — Sat, 11 Dec 2021 12:12:03 GMT

I find the next code:

        private void createPictureElement(double x, double y) {


            ESRI.ArcGIS.Carto.IPictureElement pPictureElement;
            pPictureElement = new ESRI.ArcGIS.Carto.JpgPictureElementClass();
            pPictureElement.ImportPictureFromFile(@"D:\__VS\�?конки\�?н�? заболевания л�?дей.JPG");
            //((IElement)pPictureElement)..

            ESRI.ArcGIS.Geometry.IEnvelope pEnv = new ESRI.ArcGIS.Geometry.EnvelopeClass();
            pEnv.PutCoords(x, y, x+1000,y+1000);
            ESRI.ArcGIS.Carto.IElement pElement;
            pElement = pPictureElement as ESRI.ArcGIS.Carto.IElement;
            pElement.Geometry = pEnv;
            ESRI.ArcGIS.Carto.IGraphicsContainer pGraphicContainer;
            pGraphicContainer = axMapControl1.Map as IGraphicsContainer;
            pGraphicContainer.AddElement(pElement, 0);
            ESRI.ArcGIS.Carto.IActiveView pActiveView;
            pActiveView = pGraphicContainer as ESRI.ArcGIS.Carto.IActiveView;
            pActiveView.PartialRefresh(ESRI.ArcGIS.Carto.esriViewDrawPhase.esriViewGraphics, pElement, pEnv);
  
        }

And how I can load picture in pElement from bitmap variable, not from file?
2. And how I can do constant size of elements image in display units not constant in meters?

Re: Creating IPictureElement

AnatoliiTerentiev — Sat, 11 Dec 2021 12:12:06 GMT

I did so:

((IOlePictureElement)pPictureElement).ImportPicture(IPictureDispHost.GetIPictureDispFromPicture(pictureBox.Image) as stdole.IPictureDisp);

where

        internal sealed class IPictureDispHost : AxHost
        {
            private IPictureDispHost() : base("{63109182-966B-4e3c-A8B2-8BC4A88D221C}") { }
            /// <summary>
            /// Convert the image to an ipicturedisp.
            /// </summary>
            /// <param name="image">The image instance</param>
            /// <returns>The picture dispatch object.</returns>
            public new static object GetIPictureDispFromPicture(Image image)
            {
                return AxHost.GetIPictureDispFromPicture(image);
            }
            /// <summary>
            /// Convert the dispatch interface into an image object.
            /// </summary>
            /// <param name="picture">The picture interface</param>
            /// <returns>An image instance.</returns>
            public new static Image GetPictureFromIPicture(object picture)
            {
                return AxHost.GetPictureFromIPicture(picture);
            }
        }

But maybe there's an easier way?