Develop Reference

Display generated Google Map image on a web page

I am using Google Apps Script to create a page, on which I would like to embed maps. The maps themselves would be static, but the map could be different depending on other parameters (it’s a genealogy page, and I’d like to display a map of birth and death locations, and maybe some other map points, based on a selected individual).
Using Google’s Maps service, I know that I can create a map, with a couple points built in.
Function getMapImage() {
var map = Maps.newStaticMap()
.setSize(600,400)
.addMarker('Chicago, Illinois') // markers would be based on a passed parm; this is just test data
.addMarker('Pocatello, Idaho');
// *** This is where I am looking for some guidance
return(); // obviously, I'm not returning a blank for real
}
Within the map class, there are a number of things I can do with it at this point.
I could create a URL, and pass that back. That appears to require an API account, which at this point, I do not have (and ideally, would like to avoid, but maybe I’ll have to do that). It also appears that I will run into CORB issues with that, which I think is beyond my knowledge (so if that’s the solution, I’ll be back for more guidance).
I could create a blob as an image, and pass that back to my page. I have tried this using a few different examples I have found while researching this.
Server Side
function getMapImage() {
var map = Maps.newStaticMap()
.setSize(600,400)
.addMarker('Chicago, Illinois')
.addMarker('Pocatello, Idaho');
var mapImage = map.getAs("image/png");
// OR
// var mapImage = map.getBlob();
return(mapImage);
}
Page side
<div id=”mapDiv”></div>
<script>
$(function() {
google.script.run.withSuccessHandler(displayMap).getMapImage();
}
function displayMap(mapImage) {
var binaryData = [];
binaryData.push(mapImage);
var mapURL = window.URL.createObjectURL(new Blob(binaryData, {type: "image/png"}))
var mapIMG = "<img src=\'" + mapURL + "\'>"
$('#mapDiv').html(mapIMG);
}
</script>
The page calls getMapImage() on the server, and the return data is sent as a parm to displayMap().
var mapIMG ends up resolving to <img src='blob:https://n-a4slffdg23u3pai7jxk7xfeg4t7dfweecjbruoa-0lu-script.googleusercontent.com/51b3d383-0eef-41c1-9a50-3397cbe83e0d'> This version doesn't create any errors in the console, which other options I tried did. But on the page, I'm just getting the standard 16x16 image not found icon.
I’ve tried a few other things based on what I’ve come across in researching this, but don’t want to litter this post with all sorts of different code snippets. I’ve tried a lot of things, but clearly not the right thing yet.
What’s the best / correct (dare I ask, simplest) way to build a map with Google’s Map class, and then serve it to a web page?
EDIT: I added a little more detail on how the server and page interact, in response to Tanaike's question.

Modification points:
I think that in your script, Blob is returned from Google Apps Script to Javascript using google.script.run. Unfortunately, in the current stage, Blob data cannot be directly sent from from Google Apps Script to Javascript. I think that this might be the reason of your issue.
In this case, I would like to propose to directly create the data URL at the Google Apps Script side. When your script is modified, it becomes as follows.
Modified script:
Google Apps Script side:
function getMapImage() {
var map = Maps.newStaticMap()
.setSize(600, 400)
.addMarker('Chicago, Illinois')
.addMarker('Pocatello, Idaho');
var blob = map.getAs("image/png"); // or map.getBlob()
var dataUrl = `data:image/png;base64,${Utilities.base64Encode(blob.getBytes())}`;
return dataUrl;
}
Javascript side:
$(function() {
google.script.run.withSuccessHandler(displayMap).getMapImage();
});
function displayMap(mapURL) {
var mapIMG = "<img src=\'" + mapURL + "\'>"
$('#mapDiv').html(mapIMG);
}
In your Javascript side, $(function() {google.script.run.withSuccessHandler(displayMap).getMapImage();} is not enclosed by ). Please be careful this.
Note:
In my environment, when I saw <div id=”mapDiv”></div>, this double quote ” couldn't be used. So if in your environment, an error occurs by <div id=”mapDiv”></div>, please modify ” to " like <div id="mapDiv"></div>.
Reference:
base64Encode(data)

how to jump to page of rendered pdf

Im using pdfobject along with forcePDFJS which uses pdfjs viewer.js to render pdf's.. Once they are rendered I need to be able to jump to pages without reloading the document.. The documents can be pretty large
I've seen some mentions about using PDFApplicationViewer.pdfview.currentPageNumber. but I haven't seen a good example on how to use it correclty
I've seen two example of using the PDFApplicationViewer
1. PDFApplicationViewer.pdfview.currentPageNumber = pagNum;
2. document.getElementById('mycanvas').contentWindow.PDFApplicationViewer.pdfview.currentPageNumber = pagNum;
Althought the second on make more sense Im not sure where the contentWindow object from the element comes from. Im assuming the pdfobject embeds something that I could get access too but I can't figure it out..
Also, since I couldn't really find alot on this.. Is this even possible..
For time constraint reasons I don't want to have to put together a new viewer using pdfjs.. I like what comes with the viewer.html.. I just need to jump the pages without reloading

PDFObject.embed doesn't return any reference So I looked into the pdfObject code to see how it was embedding the pdf..
for this to work there needs to be a iframe.. So when rendering with pdfobject Im using a configureation as follows:
Notice forcePDFJS=true
if(!pageNum)
pageNum=1;
var options = {
pdfOpenParams: {
view: "FitV",
page: pageNum
},
forcePDFJS: true,
PDFJS_URL: "../pdfjs/web/viewer.html"
};
Here is code that works
var pdfviewer = document.getElementById('pdfviewer');//get the viewer element
var contenttag = pdfviewer.getElementsByTagName("iframe")[0]//got this from pdfobject code
contenttag.contentWindow.PDFViewerApplication.pdfViewer.currentPageNumber = parseInt(pageNum);//change the page

In my case, the pdfviewer id is not available anymore.
PDFObject does return the reference of iframe that it creates. I was using basic HTML + JS so I had to save that reference to global window object to be able to access it from anywhere in the project.
Finally, with the reference we have, we can access the PDFViewerApplication object as below and manipulate the PDF:

Photoshop Javascript - check to see if file is open (then switch to active document), if not, open

I am trying to see, via Photoshop JSX, if a given file is already open in Photoshop. If so, I want to switch to it. If not, I would like to open it. I realize this is fairly basis but would appreciate any help!
var openFiles = app.documents;
if (openFiles.includes filename) {
app.activeDocument = filename;
}
else {
open(filename);
}

No Photoshop for testing here but i can give you an idea about how to deal with your issue anyway. There is no built-in function in JavaScript as you assume unfortuantely.
What might help you is to iterate trough all documents:
for (i=0;i<app.documents.length;i++){
if (app.documents[i].source.indexOf(filename) != -1){
//the file you are looking for is already open
}
}
In above Code, only .length and .indexOf are JavaScript native, all other stuff is Adobe specific. What i am not sure of is if "app.documents[i].source" will contain the source filename, if not you can try all other properties of "DocumentInfo" from the Adobe docs...

Import image in Acrobat using JavaScript (preferred on document-level)

I am going to implement a dynamic legend using JavaScript in Adobe Acrobat.
The document contains a lot of layers. Every layer has an own legend. The origin idea is to implement the legend so, that it contains the images in a dialog box for the visible layers.
I can only hide/show the layers by setting state to false or true (this.getOCGs()[i].state = false;) on document-level.
Question 1: Can I extract data from layer somehow for legend establishing? I think no, as we only have these function on layers: getIntent(), setIntent() and setAction(). Right? Therefore I decided to arrange it so, that all needed icons for every layer are saved in a folder with corresponding names. JavaScript should import the icons and I build the a dialog window with icons of visible Layers and place a text(description for this icon).
I tried all possibilities of image import described here: http://pubhelper.blogspot.com.au/2012/07/astuces-toolbar-icons-et-javascript.html. I got only one way (Convert the icons as hexadecimal strings). This way isn't good, as it is too much work to create with an other tool a hexadecimal string from a images and place it into a javascript code.
Unfortunately, I cannot import image using other methods:(. Since the security settings in Adobe are changed after version 7 or so, it is not possible to use functions like app.newDoc, app.openDoc, even app.getPath On document-level. I decided to implement the import on a folder level using trusted functions like this:
Variant 1:
var importImg = app.trustedFunction(function() {
app.beginPriv();
var myDoc = app.newDoc({
nWidth: 20,
nHeight: 20
});
var img = myDoc.importIcon("icon", "/icon.png", 0);
app.endPriv();
return img; });
var oIcon = importImg();
The settings in Preferences->JavaScript-> JavaScript Security are disabled (Enable menu item JS execution privileges, enable global object security policy)
NotAllowedError: Security settings prevent access to this property or method.
App.newDoc:109:Folder-Level:User:acrobat.js
Variant 2:
var importImg = app.trustedFunction(function() {
var appPath = var phPath = app.getPath({
cCategory: "user",
cFolder: "javascript"
});
try {
app.beginPriv();
var doc = app.openDoc({
cPath: phPath + "/icon.png",
bHidden: true
});
app.endPriv();
} catch (e) {
console.println("Could not open icon file: " + e);
return;
}
var oIcon = util.iconStreamFromIcon(doc.getIcon("icon"));
return oIcon;});
var oIcon = importImg();
Could not open icon file: NotAllowedError: Security settings prevent access to this property or method.
At least it allows the execution of all these functions like app.newDoc, but in the second variant it says, wrong range of content or so. Maybe is here the pdf from an image created false? I just took the image and printed it into a pdf.
I tried all these possibilities with .jpg, .png, .pdf. with different sizes(big images and 20x20), It doesn't work.
Could somebody help me, as I spent a lot of time with trying different possibilities. It would be actually better to implement the main goal described above on document level, is it possible?
Thank you and kind regards,
Alex

Do you have the Console fully activated in Acrobat? If not, do so and look for error messages you get.
The first variant does not work, because myDoc is not defined (unless you have done that before you call the importImg function).
If you want to import the image into the newly created file, you will have to make a reference to the Document Object you create with newDoc(). Actually, that would make the link to myDoc, as in
var myDoc = app.newDoc(1,1)
(are you sure you want to create a document measuring 1x1 pt?)
The next issue with the first variant is a bug in Acrobat, which discards "floating" Icon Objects when saving the document; you'd have to attach the Icon Object to a field to keep it; this field can be hidden, or even on a hidden Template page in the document.

Tag images in the image itself? HOW-TO

How to tag images in the image itself in a web page?
I know Taggify, but... is there other options?
Orkut also does it to tag people faces... How is it done?
Anyone knows any public framework that is able to do it?
See a sample bellow from Taggify:

I know this isn't javascript but C# 3.0 has an API for doing this. The System.Windows.Media.Imaging namespace has a class called BitmapMetadata which can be used to read and write image metadata (which is stored in the image itself). Here is a method for retrieving the metadata for an image given a file path:
public static BitmapMetadata GetMetaData(string path)
{
using (Stream s = new System.IO.FileStream(path, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
{
var decoder = BitmapDecoder.Create(s, BitmapCreateOptions.None, BitmapCacheOption.OnDemand);
var frame = decoder.Frames.FirstOrDefault();
if (frame != null)
{
return frame.Metadata as BitmapMetadata;
}
return null;
}
}
The BitmapMetadata class has a property for tags as well as other common image metadata. To save metadata back to the image, you can use the InPlaceBitmapMetadataWriter Class.

There's a map tag in HTML that could be used in conjunction with Javascript to 'tag' different parts of an image.
You can see the details here.

I will re-activate this question and help a bit. Currently the only thing i have found about is http://www.sanisoft.com/downloads/imgnotes-0.2/example.html . A jQuery tagging implementation. If anyone knows about another way please tell us.
;)

You can check out Image.InfoCards (IIC) at http://www.imageinfocards.com . With the IIC meta-data utilities you can add meta-data in very user-friendly groups called "cards".
The supplied utilities (including a Java applet) allow you to tag GIF's, JPEG's and PNG's without changing them visually.
IIC is presently proprietary but there are plans to make it an open protocol in Q1 2009.
The difference between IIC and others like IPTC/DIG35/DublinCore/etc is that it is much more consumer-centric and doesn't require a CS degree to understand and use it...