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Create PDF ?

CraigPerreault

Does anyone have a code sample to create a PDF file using the Silverlight API?

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ErikEngstrom

Has anybody made any progress using the geoprocessing export to PDF tool?
Jay, do you have anything to share yet? 😉
My shop is desperately looking for a decently formatted PDF document that will contain the map document, a legend, and a user defined space for a title/notes. I think the geoprocessing route utilizing python is our best bet, but want to be sure before spending a few months in development... Or to contract a service that will do this using SRS.

Thanks!

GregoryDillon

Has anybody seen a problem with opacity. Opacity is working on my dynamic layers but the colors in the PDF don't match the screen.

GregoryDillon

Has anybody seen a problem with opacity. Opacity is working on my dynamic layers but the colors in the PDF don't match the screen.

JayKappy

Alright so I think I am started on that path...I have to wait till monday to get that published on their server...
In the mean time can we address the web site of things....Placement of the JS pages on the web root

You simoply copy the ExportMap Folder to the web root? Do you make a folder? Virtual Directory? Confused....seems a bit vague

Web App:
1. Copy the WebApp -> ExportMap folder to you web server wwwroot.
Note: This app uses a proxy page. If you are using a different server technology
you will need to update the proxy accordingly, in the asp folder. Proxy is used for large payloads.
This can occur if a user draws lots of graphics.

2. Update the main.js JavaScript file to point at your map, gp, and proxy services.
lines 49, 65, and 73.

It says to modify the 3 lines below...I am not really sure what to modify...

esri.config.defaults.io.proxyUrl = "asp/proxy.ashx";
Not sure what to change here, just to path to the file?

var opMap = new esri.layers.ArcGISDynamicMapServiceLayer("http://davids/ArcGIS/rest/services/Demo/SaveTheBay/MapServer", {
id: "Operational", opacity: 1.0, visible: true });
Not sure what to change her, what service is this supposed to point too...IS THIS THE MAP? What if I am consuming multiple services from multiple sources....one map dosent work...does the PDF print read all the layers in the active map? Or does it only create the PDF from this map services layers

ep.exportMapGP = new esri.tasks.Geoprocessor("http://davids/ArcGIS/rest/services/Demo/ExportPDF/GPServer/ExportToPDF");
I assume that I chance the location of the ExportPDF service

THANK YOU AGAIN FOR YOUR PATIENCE AND HELP...very appreciated...

JonHouck

Seems good so far. I believe we went into Published Toolbox > Script Properties > Parameters and configured the data types and other parameter properties. I'm a little hazy on that part, it was awhile ago and we did it once and never revisited it.

I'm looking at the published script now, though, and it does have all the parameters set to match what's in the python and code behind.

JayKappy

I think I am on the right path here....see attached....I simply added the toolbox and it placed the script in there....i opened the script and everythign seems to be there...
I dont think I need to do anything else besides publish to ArcServer...that seem correct?

pythonscript.jpg

JonHouck

Well you'll notice in the script, it will have this for example:

xMin = arcpy.GetParameterAsText(0)
if xMin == '#' or not xMin:
    xMin = "4357197" # provide a default value if unspecified

yMin = arcpy.GetParameterAsText(1)
if yMin == '#' or not yMin:
    yMin = "1414133" # provide a default value if unspecified

xMax = arcpy.GetParameterAsText(2)
if xMax == '#' or not xMax:
    xMax = "4357210" # provide a default value if unspecified

yMax = arcpy.GetParameterAsText(3)
if yMax == '#' or not yMax:
    yMax = "1414160" # provide a default value if unspecified

So you're setting these variables that the script will use equal to the arcpy.GetParameterAsText, and that GetParameterAsText method is what's reading the jobParameters that you're passing into the script. It goes to work once it receives them all.

JayKappy

To publish the geoprocessing service you just set the script up in an ArcGIS toolbox like you would any other python script (don't forget to set the parameters). Then you right click on the toolbox and publish to ArcGIS Server. You'll see it in the list with all your map services, except it will have a toolbox icon.

Yea I did the conversion..pretty stright forward....

1. I added the python to my ArcToolbox by right clicking ArcToolbox and selecting "Add Toolbox"
2. I then choose the toolbox that was supplied above.

Everything seems to be there XY min max, Layout etc etc etc...

What parameters are you speaking of?
I thought thats what the code does....passing the parameters in that is

I really thank you for your patience...I know I am making a mountain out of an ant hill here.

After I get this on the server I can focus on getting the corect files on my web root (making sure to modify the .js page for the proxies etc)....then should just need your few lines of code and I shoudl be running....knock on wood.

JonHouck

As long as you get the job parameters set correctly I don't think I'm missing anything. Keep in mind the samples I posted are in C#, I haven't used VB.net which I believe you initially inquired about.

JayKappy

OK so if that is published...then all I need to do is use yoru few lines of code to push the parameters to the service? That correct?
Thanks

JonHouck

JayKappy

Foudn the directions.....trying to start with the server side pyton....

Export Map to PDF using arcpy.mapping
Written by David Spriggs dspriggs@esri.com

Setup:
GP and Map Service:
1. Unzip all zip files and move the contents of the GP -> ExportPDF folder to your ArcGIS server.
2. Publish the ExportPDF toolbox.
3. Publish the SaveTheBAy.mxd found in the Map Service folder.
4. Clear REST cache if needed.

Not sure why I need to have an mxd published....assume that I can use the current map service I am already using?????

THanks so much for helping me strighten this out and learning...

JayKappy

I thank you for your time and support....I guess I am confused on the service/script...its says there are instructions to publish the service on the server but I dont see any...

From the link Patrick posted above, we got the Python script that ESRI staff developed for doing a print with Arcpy.mapping. The python script gets published in ArcServer as a geoprocessing service. I'm sure you know all this already, but I'm starting from the beginning. This geoprocessing service accepts a series of parameters that are passed to it, and then passes these parameters into a template (or multiple templates) that you have created, and are waiting for it to consume. In fact, which template the GP service will use is one of the parameters. We edited the python script a bit for our needs, but it works right out of the box.

Is this the series of CS pages he posted? Strike that ....I was referencign another entry in this forum....I see the files he gave in the GP folder....Trying to figure out how these are published.....right now I am running this application off my local drive. The only part that i am hitting server on is for the map services, and that is done by another that supplies us with the map services etc. How would i have them install this service? This is all very new to me as well....

So I assume that the majority of the code you posted is about all you need on your side...the rest is a service published on the server side? that correct?
I think I need to get the service workign first....then shold just have to use yoru code to call the service...
Again I thank you very much for this.....

JonHouck

I'll try my best to explain this correctly... I apologize in advance, I'm a geographer that's learned to write some code, not a CS guy.

From the link Patrick posted above, we got the Python script that ESRI staff developed for doing a print with Arcpy.mapping. The python script gets published in ArcServer as a geoprocessing service. I'm sure you know all this already, but I'm starting from the beginning. This geoprocessing service accepts a series of parameters that are passed to it, and then passes these parameters into a template (or multiple templates) that you have created, and are waiting for it to consume. In fact, which template the GP service will use is one of the parameters. We edited the python script a bit for our needs, but it works right out of the box.

The way our application works step by step is as follows:

User opens the application and selects what they want to print. They use combo boxes or text input boxes (depending which layer they're focusing on) to run a query task that zooms to the feature they want on their map. Once the query is complete and the feature they want to print is on their screen, they select which template they want to use from a separate combo box (for example, we have a map with map elements such as scale bar, locator map, etc, and a plain map without them.)

After they have everything selected, they press a button called "Export PDF" which is tied to an event handler that does the following:

Sets the PDFTitle variable based on the feature that the query returned (in our app, they do not create their own title, but this is an easy change).
Sets the Mapscale variable based on a map scale equation we use to make the features fit perfectly into the data frame.
Sets theTemplate variable based on which template they have selected from the combobox.
Passes these variables, and all the other arguments they require, to the parameters.
Creates the Geoprocessor ExportTask.
Executes the ExportTask.SubmitJobAsync

Then under the ExportTask.JobCompleted event handler, we:

Set our image.visibility = Visibility.Visible (the little PDF image they click to get their map)
Set our pdfURL = the url of the PDF that was created (you can change the output location in the python script)

Then we have a PDF image mouseleftbuttondown event handler, and when clicked we:

HtmlPage.Window.Invoke("PDFs", pdfURL);

And the map that was created is opened in a browser window and can be saved, printed, etc.

Phew. I hope that helped in some way, like I said if you need more code samples I'll look into getting those available.

JayKappy

What code are the event handlers calling....the 30 plus lines of code cant be all thats needed....I can probably handle passign the varaibles from a form or window to the parameters...or at least hard code them for the time being..

1. I think you are specifying the parameters....adn teh accessign them with ExportTask.SubmitJobAsync(jobParameters)...is that correct?

2. As for the envent handler : ExportTask.JobCompleted += New EventHandler(Of JobInfoEventArgs)(ExportTask_JobCompleted)
What code is this calling?

I am starting from scratch so I assume that in a Button click I define the parameters and then run the Event Handlers????

Thank you for your time and help...it is greatly apprecaited.

JonHouck

The map title is passed into the GP service in one of the parameters as a string variable. So you could set the variable equal to a textbox.Text that you provide for the user to enter the title, then execute the ExportTask on a button click event handler (or whatever you want).

I'll look into hosting a project with as much of the code as I can, but in the meantime I'd be happy to answer any other questions you have about how the whole thing works.

JayKappy

Do you have by any chance a project that you can post with your code? Maybe something truncated down to just the print code? I know it is a lot to ask...and as you mentioned there are a lot of holes there...

Would be nice to see how you created the popup that alows the user to specify the map name and where you are storing it and applyign it to the code for the export

JonHouck

patrickbrooke ANY help on how to integrate that into a Silverlight app that is using VB. This forum entry has confused me even more as I am seeign a few different ways to do it...I love the option to choose a map title etc...
Can you help by informing how to incorporate into silverlight?

Thanks

I was working with Patrick when we implemented this solution, and now that he's big timed us and moved on I'm the one doing all this in our shop.

The way we found to utilize this geoprocessing service was to create the list of parameters in our code behind and then populate them with the appropriate values. It works really good, but we haven't figured out how to format the JSON string that the "visible layers" parameter is expecting, so currently we can only control the visible layers on the template side. Our C# code to populate the parameters looks like this:

List<GPParameter> jobParameters = new List<GPParameter>();
            jobParameters.Add(new GPDouble("xMin", boundingExtent.XMin));
            jobParameters.Add(new GPDouble("yMin", boundingExtent.YMin));
            jobParameters.Add(new GPDouble("xMax", boundingExtent.XMax));
            jobParameters.Add(new GPDouble("yMax", boundingExtent.YMax));
            jobParameters.Add(new GPString("Spatial_Reference", MyMap.SpatialReference.WKID.ToString()));
            jobParameters.Add(new GPDouble("Map_Scale", Mapscale));
            jobParameters.Add(new GPString("Visiblelayers", "None"));
            jobParameters.Add(new GPString("Layout", theTemplate));
            jobParameters.Add(new GPBoolean("Include_Attributes", false));
            jobParameters.Add(new GPString("Map_Title", pdfTitle));
            jobParameters.Add(new GPString("PointGraphics", ""));            
            jobParameters.Add(new GPString("PolyGraphics", ""));

(We have a separate "if" statement in the code for LineGraphics, because one of our templates utilizes them based on a selection, but it's done the same way.)

Then we submit the job to the GP service with the following code:

Geoprocessor ExportTask = new Geoprocessor("http://......../rest/services/ExportPDF_GP/GPServer/ExportToPDF");
            ExportTask.JobCompleted += new EventHandler<JobInfoEventArgs>(ExportTask_JobCompleted);
            ExportTask.Failed += new EventHandler<TaskFailedEventArgs>(ExportTask_Failed);
            ExportTask.SubmitJobAsync(jobParameters);

The event handlers control some busy indicators and the failed throws an error message, but the completed sets the URL of the PDF that's created, which can then be accessed and opened with an on-click event.

I know there are tons of gaps in this explanation, but this tool works really great for us and we're excited about how well our users are utilizing it. If you have any questions about how we create any of the variables the parameters are using I'll be happy to answer them.

JayKappy

This is the best way to create a pdf with a silverlight GIS web application. We have modified this sample to work in our environment with much success.

http://www.arcgis.com/home/item.html?id=8f16fdeef39c46b3952002b2d85ea5de

The maps produced, since you print to pdf from the source data, are high quality, not the 96 dpi ones you get from REST.

Still round these parts Patrick? Have a few questions on integrating into Silverlight....can you contact me or give soem contact info...would be greatly appeciated.
jaykappy@Yahoo.com
Thanks

JayKappy

patrickbrooke ANY help on how to integrate that into a Silverlight app that is using VB. This forum entry has confused me even more as I am seeign a few different ways to do it...I love the option to choose a map title etc...
Can you help by informing how to incorporate into silverlight?

Thanks

JayKappy

using PdfSharp.Pdf;

        private void PDFbutton_MouseLeftButtonUp(object sender, MouseEventArgs e)
        {
                    SaveFileDialog savePDF = new SaveFileDialog();
                    savePDF.Filter = "PDF file format|*.pdf";
                    savePDF.DefaultExt = ".pdf";
                    if (savePDF.ShowDialog() == true)
                    {
                        System.IO.Stream PDFstream = savePDF.OpenFile();
                        PDFExporter PDFNew = new PDFExporter();
                        PDFNew.SetMap(myMap);
                        PDFNew.SetOutputStream(PDFstream);
                        PDFNew.DoExport();
                    }
        }

I am trying this and getting an error on PDFExporter....sayign not defined....is there more code for this?
THanks

Anyone have a full example? There are so many different ways being discussed....like the option of not loading the entire reference....
Anyone out there that can help me....very limited knowledge here....ANYONE DOING THIS IN VB....thanks

I HAVE A SIMPLE BUTTON WITH THIS..BUT MISSING THE CLASS 'PDFExporter'....anyone have an example of that?

    
Private Sub Print_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)

        Dim savePDF As New SaveFileDialog()
        savePDF.Filter = "PDF file format|*.pdf"
        savePDF.DefaultExt = ".pdf"
        If savePDF.ShowDialog() = True Then
            Dim PDFstream As System.IO.Stream = savePDF.OpenFile()
            Dim PDFNew As New PDFExporter()           
            PDFNew.SetMap(MyMap)
            PDFNew.SetOutputStream(PDFstream)
            PDFNew.DoExport()
        End If

    End Sub

DeminHu

The library seems not work for my situation:
My map including my local dynamiclly map services, bing layers, and other real time weather layers from ESRI and NOAA. ( Cross domain )

Any suggestion will be apprecciated.

CyndieEnfinger

This is the best way to create a pdf with a silverlight GIS web application. We have modified this sample to work in our environment with much success.

http://www.arcgis.com/home/item.html?id=8f16fdeef39c46b3952002b2d85ea5de

The maps produced, since you print to pdf from the source data, are high quality, not the 96 dpi ones you get from REST.

Unfortunately, the readme file doesn't give any help on how to use it in Silverlight and I'm not sure how to do that.

PatrickBrooke

This is the best way to create a pdf with a silverlight GIS web application. We have modified this sample to work in our environment with much success.

http://www.arcgis.com/home/item.html?id=8f16fdeef39c46b3952002b2d85ea5de

The maps produced, since you print to pdf from the source data, are high quality, not the 96 dpi ones you get from REST.

CyndieEnfinger

I'm using this example to create a PDF for multiple ArcGISTiledMapServiceLayers and a GraphicsLayer:
http://www.pierssen.com/arcgis10/silverlight.htm

I'm receiving a Layer Mismatch error on the GraphicsLayer in AddBitmap(WriteableBitmap wbm)
...
        if (iCount != destPixels.Length)
        {
            MessageBox.Show("Layer mismatch encountered");
            return; // This should never happen
        }
...

There is nothing unique with the GraphicsLayer:
                <esri:GraphicsLayer ID="MyGraphicsLayer"/>

I'm not sure how to resolve this. The destPixels.Length is > iCount.

Any help would be appreciated.

JeffScott2

FYI, the PDF exporter download has included an example user control since November. I've never seen a problem with tiled, dynamic, or graphic layers.

http://www.pierssen.com/arcgis10/silverlight.htm

Hi Mark - I was wondering if you have found a way to export the featureLayer in your great PDFExporter.cs class yet?

FengLin

adam,

Yes, you approach produces a high quality PDF for the map. Thanks.

Is it possible to create PDF just using current tiled layer, instead of creating a new dynamic layer from the same map service as current tiled layer?

We ended up going pretty lean on the exporter. The method we implemented is as follows

private void Map2PDF_Click(object sender, RoutedEventArgs e)
        {
            /* // Don't need the ExportPDF dialog anymore
            CMC_Viewer.Views.ExportPDF map2pdf = new CMC_Viewer.Views.ExportPDF();
            map2pdf.SetMap(this.Map);
            map2pdf.Show();
             * */

            // Display save-as dialog
            SaveFileDialog dialog = new SaveFileDialog();
            dialog.Filter = "PDF|*.pdf";
            if (!dialog.ShowDialog().Value)
            {
                return;
            }

            // Create a new dynamic layer from the same map service as current tiled layer
            ArcGISTiledMapServiceLayer tiled = this.Map.Layers[0] as ArcGISTiledMapServiceLayer;
            ArcGISDynamicMapServiceLayer dynamic = new ArcGISDynamicMapServiceLayer()
            {
                Url = tiled.Url,
                ImageFormat = ArcGISDynamicMapServiceLayer.RestImageFormat.JPG
            };


            // When the dynamic layer has initialized create the in-memory PDF document
            dynamic.Initialized += (a, b) =>
            {
                dynamic.GetUrl(this.Map.Extent,
                               (int)this.Map.ActualWidth,
                               (int)this.Map.ActualHeight,
                               delegate(string url, int width, int height, Envelope extent)
                               {
                                   // Download a new image of identical to what is currently displayed in the map
                                   WebClient webClient = new WebClient();
                                   webClient.OpenReadCompleted += (c, f) =>
                                   {
                                       // Use the dispatcher to force execution in the UI thread
                                       Dispatcher.BeginInvoke(delegate()
                                       {
                                           // Create the PDF document, set document information properties
                                           PdfDocument document = new PdfDocument();
                                           document.Info.Title = "Map";
                                           // Create a new page with the same dimensions as the browser map
                                           PdfPage page = new PdfPage(document)
                                           {
                                               Height = new XUnit(this.Map.ActualHeight, XGraphicsUnit.Presentation),
                                               Width = new XUnit(this.Map.ActualWidth, XGraphicsUnit.Presentation)
                                           };
                                           document.Pages.Add(page);

                                           // Create a graphics object for writing to the page
                                           XGraphics graphics = XGraphics.FromPdfPage(page);
                                           // Add the map image to the page
                                           XImage image = XImage.FromStream(f.Result);
                                           graphics.DrawImage(image, 0d, 0d);
                                           // Save the PDF document to the user specified filename
                                           document.Save(dialog.OpenFile());
                                           // Notify the user that we're done
                                           MessageBox.Show("Map saved to '" + dialog.SafeFileName + "'");
                                       });
                                   };
                                   webClient.OpenReadAsync(new Uri(url));
                               });
            };
            dynamic.Initialize();
        }

We found that the size of the map to be exported has to be set better than in other examples. Anyway, the code above produces a high quality map.

adamestrada

We ended up going pretty lean on the exporter. The method we implemented is as follows

private void Map2PDF_Click(object sender, RoutedEventArgs e)
        {
            /* // Don't need the ExportPDF dialog anymore
            CMC_Viewer.Views.ExportPDF map2pdf = new CMC_Viewer.Views.ExportPDF();
            map2pdf.SetMap(this.Map);
            map2pdf.Show();
             * */

            // Display save-as dialog
            SaveFileDialog dialog = new SaveFileDialog();
            dialog.Filter = "PDF|*.pdf";
            if (!dialog.ShowDialog().Value)
            {
                return;
            }

            // Create a new dynamic layer from the same map service as current tiled layer
            ArcGISTiledMapServiceLayer tiled = this.Map.Layers[0] as ArcGISTiledMapServiceLayer;
            ArcGISDynamicMapServiceLayer dynamic = new ArcGISDynamicMapServiceLayer()
            {
                Url = tiled.Url,
                ImageFormat = ArcGISDynamicMapServiceLayer.RestImageFormat.JPG
            };


            // When the dynamic layer has initialized create the in-memory PDF document
            dynamic.Initialized += (a, b) =>
            {
                dynamic.GetUrl(this.Map.Extent,
                               (int)this.Map.ActualWidth,
                               (int)this.Map.ActualHeight,
                               delegate(string url, int width, int height, Envelope extent)
                               {
                                   // Download a new image of identical to what is currently displayed in the map
                                   WebClient webClient = new WebClient();
                                   webClient.OpenReadCompleted += (c, f) =>
                                   {
                                       // Use the dispatcher to force execution in the UI thread
                                       Dispatcher.BeginInvoke(delegate()
                                       {
                                           // Create the PDF document, set document information properties
                                           PdfDocument document = new PdfDocument();
                                           document.Info.Title = "Map";
                                           // Create a new page with the same dimensions as the browser map
                                           PdfPage page = new PdfPage(document)
                                           {
                                               Height = new XUnit(this.Map.ActualHeight, XGraphicsUnit.Presentation),
                                               Width = new XUnit(this.Map.ActualWidth, XGraphicsUnit.Presentation)
                                           };
                                           document.Pages.Add(page);

                                           // Create a graphics object for writing to the page
                                           XGraphics graphics = XGraphics.FromPdfPage(page);
                                           // Add the map image to the page
                                           XImage image = XImage.FromStream(f.Result);
                                           graphics.DrawImage(image, 0d, 0d);
                                           // Save the PDF document to the user specified filename
                                           document.Save(dialog.OpenFile());
                                           // Notify the user that we're done
                                           MessageBox.Show("Map saved to '" + dialog.SafeFileName + "'");
                                       });
                                   };
                                   webClient.OpenReadAsync(new Uri(url));
                               });
            };
            dynamic.Initialize();
        }

We found that the size of the map to be exported has to be set better than in other examples. Anyway, the code above produces a high quality map.

FengLin

I use Silverlight PDF library �??silverPDF�?�, add extension method �??ToStream�?� for WriteableBitmap and �??ExportPDF�?� for PrintDocument:

public static Stream ToStream(this WriteableBitmap writeableBitmap)
{
            //use EditableImage and PngEncoder to generate image stream
}

public static void ExportPDF(this PrintDocument printDocument, UIElement element, Stream outPutStream)
{
            WriteableBitmap bitMap = new WriteableBitmap(element, null);

            Stream stream = bitMap.ToStream();

            PdfDocument document = new PdfDocument();
            PdfPage page = document.AddPage();

            XImage img = XImage.FromStream(stream);

            //�?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?��?�.

            XGraphics gfx = XGraphics.FromPdfPage(page);

           gfx.DrawImage(img, 0, 0, img.PointWidth, img.PointHeight);
           document.Save(outPutStream);
}

Usage:

private void btnExportToPDF_Click(object sender, RoutedEventArgs e)
{
          SaveFileDialog saveFileDialog = new SaveFileDialog();
          saveFileDialog.Filter = "PDF file format|*.pdf";
          saveFileDialog.DefaultExt = ".pdf";

          if (saveFileDialog.ShowDialog() == true)
          {
              Stream pdfstream = saveFileDialog.OpenFile();

              try
              {
                     PrintDocument printDocument = new PrintDocument();
                     printDocument.ExportPDF(theUIElementYouWantToPrint, pdfstream);

                     MessageBox.Show(string.Format("PDF is exported and saved in: {0}", saveFileDialog.SafeFileName));
              }
              catch (Exception ex)
              {
                    MessageBox.Show(string.Format("Error creating PDF document: {0}", ex.Message));
              }
          }
      }

It works.

The problem is that the image loses quality, especially for the text in theUIElementYouWantToPrint.

I find that lost the quality in using EditableImage and PngEncoder (or JpgEncoder) to generate image stream:

1. UIElement -> WriteableBitmap (quality not lost)
2. WriteableBitmap -> PNG or JPG Stream (quality lost)
3. PNG or JPG Stream -> PDF (quality not lost)

Any ideal?

PrintToPDF.JPG

PrintToPrinter.JPG

MarkCederholm

The old ArcScripts site had a mechanism for contacting the author. I don't like the new systems but I hear they're changing. Anyway, my website has an email link: www.pierssen.com

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