I'm trying to integrate my own markers as pointers on my map. The defaults of circle, rectangle diamond etc... are not what I need and I'm looking for arrow symbols instead. Ideally the popular Microsoft wingdings arrows. I'm surprised simple arrows are not on the default list, I'd thought there would be many a need to indicate a rise or fall with any numeric data on a map.
I would like to solve this with an expression to force an arrow icon as a marker, can this be done by using it's character code etc..? I'm using SSDT to design the report.
Alternatively I'll just have to do this in paint and upload via the image import.
Food For Thought
I see they've done a great job in making the map process easy to set up, but when it comes to customisation from the norm it is extremely difficult.
TechNet: Understanding Marker type Rules:
http://technet.microsoft.com/en-us/library/ee240825.aspx
As you can see from the link (Which is one example as not to swarm this post with links) Microsoft make no mention of image upload or Expression input for maps. This I find is one example, the maps are great, but I feel it's difficult to get documented resources to further customise my report.
You'll need to use an image of an arrow for your custom marker, and you will still be able to change other attributes of it (size, transparency, etc).
If you use a custom image marker, you may run into problems where Visual Studio fails to render the map in design mode from time to time - it's incredibly annoying, so I find it best to drop in the custom images as the very last thing I do when building a map (just use a circle marker or something in the interim).
Related
I have a dwg (I can change the file format to svg or other formats if needed) file that I want to show on my web page. After this file is displayed in the page, I want to be able to zoom in, zoom out, pan and put links that request the api where necessary. In fact, it looks like information and links about the relevant place appear when you hover over the landmarks on Google maps.
How should I go about doing this job?
If you can translate the DWG file to DXF (there are several tools to do this) then you can use MapServer to render it on a web map compatible way. Have a look at MS4W for an easy way to install and configure MapServer on Windows. Since you want pop-ups, I'd recommend using Leaflet as the client side browser tool kit for providing pan, zoom, pop-ups etc to communicate to MapServer. figuring out the coordinate system of the DWG file will likely be the hardest part.
Use this method if integrating your DWG with other mapping data (roads, etc) is important. Otherwise look for something easier to implement.
There are libraries that let you easily zoom and pan an SVG image. For example svg-pan-zoom.
As for the links, you would need to do a bit of extra work. IIRC DXF files don't have the concept of a whole element that you could hover over. All the lines in the file are discrete object. So, if I am remembering that correctly, you may need to load the SVG into an editor and add elements on top of the diagram that correspond to your hover areas. They don't need to be visible. They can be transparent and still hoverable. You just need to then add the interactivity. Ie.
Optionally add hover effects with CSS.
Add a mouseover or click event handling to implement the link handling, or
use standard SVG <a> linking instead.
I would like to create a webpage that displays one image at a time with shapes and annotations shown over it. Each image should have a unique URL address in the address bar.
I have a set of images as PNGs. For each image there is a set of shapes (rectangles, polylines - as pairs of x,y coordinates in pixels) and annotations (location on the image x, y in pixels and a short text as string) to be displayed over it.
When user loads the unique url for an image they should see it with shapes displayed on top of it and annotation markers shown as circles. When user presses a button labeled „next“ the page loads the next PNG with its corresponding shapes and annotations. User can click on an annotation marker and a text balloon should open to show the text for the annotation.
How to approach developing this? I am asking since I don’t have an overview of web app frameworks or the current best practices for databases and graphic formats for online content.
I have experience in programming - Python, datascience, Procedural geometry, Unity for game development (C#), Lua - but not for the web.
I can do a WebGL app using Unity to do what i want and link it to a MySQL database but it feels like shooting a fly with bazooka. Maybe there is an easier, simpler way. Any advice or tips would be appreciated.
The best tip, I think, is in one of the tags of your question: canvas.
Images can be drawn onto it, as well as shapes. To handle your markers you could compare the coordinates of a click on the canvas to the coordinates of your markers (see this post for further info on getting the click coordinates). The annotation balloons could be realised by hiding or showing a simple <div> on click.
As for web app frameworks, depending on how fancy it should be you could do it "by hand" in native html and css, or use something with nice predefined components, like Bootstrap.
Depending on where you will be hosting this webpage, you will, or will not have to worry about the backend/server. There are numerous hosting providers available that provide user-friendly admin panels.
I have a report that maps sales to particular postal areas which works great. The only issue I'm having is it's not directly obvious exactly which area is which. The information exists in the file (see picture below) but I'm wondering if there is a way to have tooltips for each polygon that denote the area it represents.
I tried setting the expression for "tooltip" in the map properties dialog to the postal area field of my dataset but that only provided a tooltip for the entire map not the individual polygons. I'm hoping these some obvious property I'm missing or failing that some clever hack that can get the result.
If tooltips aren't possible is there a way to label each polygon? That might be a little too busy on the page but if it's the only option I'd like to give it a look and see if it's workable.
You can set the tooltip for individual polygons in the Map Polygon Properties. This will show up when you hover over a polygon in a report viewer.
I am using the platform Ushahidi Web-2.7.3 , see: http://ti5.net.br/provedorlegal.com.br, and when I zoom in beyond a certain level, the clustered markers disappear from the map. I also tested this on an older version of a site, see: http://movimentofichalimpa.org/mapa, where the clustered markers do not disappear on zooming in, but just become ungrouped, as is normal with a cluster strategy. How can I make the markers remain on the map when zooming in?
Ushahidi actually uses OpenLayers under the hood -- the images may come from Google, but the Javascript library is pure OpenLayers. These markers are actually generated by adding what is known as a context to the style attribute of the OpenLayers.Layer.Vector and an associated Cluster.Strategy. There is a good example of it working properly here: OpenLayers cluster example and if you look at the Javascript source you will see how it is done: view-source:http://dev.openlayers.org/releases/OpenLayers-2.13.1/examples/strategy-cluster-threshold.html by defining a radius in the context of the styleMap.
The reason that your example isn't working is that there is actually a script error being triggered, which is stopping the clustering/styling from being performed. The styles are defined in the file ushahidi.js. If you open a Javascript debugger you will see the error for yourself that is firing before the ushahidi.js functions are called to determine the number of features in the cluster and therefore the radius of the markers.
The actual error is http://ti5.net.br/provedorlegal.com.br/index.php/json/cluster?s=1401591600&e=1404183599&z=9, but I have no idea why, as the OpenLayers is the minified version which is very hard to debug. You might find moving your application to OpenLayers directly will help, as it will be easier to debug, and it also works on mobiles, which I know is one of the reasons people like to use Ushahidi.
Currently, on a web application I am working on, one of our clients asked for a feature I am not quite sure how to implement. We have a Google Map on the main page and our client wants to be able to draw on that map for presentations. I have seen two examples of what our client wants. The first example is at http://www.scribblemaps.com/ where I can draw lines, shapes, and in the Pro version "block arrows" which is what our client is asking for. However, this application only allows you to create the map on their site and then save it as a JPEG. Our client wants to do this within our application. Scribble Maps accomplishes this by using Adobe Flash and I'm guessing they place a Google Map in the background which I am not sure would be the best route for us.
I also found this blog http://googlegeodevelopers.blogspot.com/2011/11/make-your-map-interactive-with-shape.html describing User Editable Shapes. On this example I am able to create shapes and Adjust the size post creation. I was wondering if it were possible to create a custom polygon like a block arrow as another button on the map where the user could add that shape to the map and edit the size? I realize the user could use the custom polygon button but I know our client won't want to draw their own arrow each time.
* EDIT *
So that I am clear I am not asking anyone to write any code for me but point in the direction of information. I want to know if it is possible to pre-create polygon shapes like "block arrows" so that our client can click and drag to draw this arrow on the map like circles or rectangles using just the Google Maps API.
I had vary similar tasks to perform in my project.
You can let them draw shapes on the map. In my project I have let he user draw there shape by clicking on map and adding a marker on each click and when he clicks on the existing marker all the makers form a closed polygon. Then you can save it to database. As far as that editing part you mentioned above, you can set editable property of polygon to true to let them play with polygon.
Hope this helps you in your project.
Happy Coding !! Good Luck
Maybe a late answer but I think this one would be useful for you.
https://developers.google.com/maps/documentation/javascript/examples/user-editable-shapes