I need to create an image map, but the shapes are quite complicated, and would take forever for me to do.
Is there any sort of tool that allows you to easily plot out the points for a map?
The Gimp: http://www.gimp.org/tutorials/Image_Map/ and http://docs.gimp.org/en/plug-in-imagemap.html
There are some online tools - http://www.maschek.hu/imagemap/imgmap, http://dhost.info/eleomap, http://www.mobilefish.com/services/image_map/image_map.php
This is actually the one place where it's still OK to use Dreamweaver. Creating complex image maps in DW is as simple as clicking around the outside of the shape to add points.
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I'm building a flight simulator in Qt, and I would like to display a satellite view on the floor. I saw that satellite views were accessible with QtLocation.
Is there a way to extract a picture from this plugin (giving center or corner coordinates and zoom level) so that I can use it to texture a fixed size plane?
For the moment, my code is full C++ (no qml), so if there is a way to do it that way, I'll be happy. But if the easiest solution is to switch my scene to qml, I can do that.
By the way, the source I plan to use is "World Imagery" from "esri", so perhaps there is a solution without QtLocation, I have no idea of what will be the simplest.
Thanks in advance !
I solved my problem by getting round it. I used the REST API of ArcGIS, making my program download tiles to the hard drive when a new one is needed and using this file as a texture. Using that, I do also have a cache functionality as suggested by #Florian Blume.
I was wondering if there was a nice way to allow users to create nodal graphs (with restrictions) as with LabView.
Something like this:
I have seen http://www.pyqtgraph.org/, which seems to have something similar, and I do intend to use PyQt as my base (though I do not mind linking in C++ code), but it doesn't quite have the look and feel I wanted.
Any pointers to the right direction would be great.
There is a Diagram Scene Example which uses the Graphics View framework to make flowchart diagrams. It is an application in which you can add flowchart shapes and text and connect the shapes by arrows. The shapes, arrows, and text can be given different colors, and it is possible to change the font, style, and underline of the text.
You can take a look at the code and see how to create custom graphics items and handle mouse events and movement of items. Then change the look and behavior as you like.
Check another diagram editor here.
[not enough reps. to comment]I too had a similar task to implement. For me it was a large and complex block diagram. It was really hard to implement using QGraphicsScene. I posted a question on SO and instantly gained enough downvotes. No one gave any useful hints. So I did the hardway. Created images of lines with transparent background and changed the style-sheet dynamically. I don't know weather this is the right way. It will be really helpful if someone gave insights on this.
I am a newbie learning to use graphviz.
Is it possible to generate interactive pop-out annotations when you move cursor around the graph? For example, hovering a node/edge will pop-out message box showing more information about it.
And if so, how?
Thank you so much for the help.
Depending on the output format, there are some possibilities:
You may create a png image and an image map and serve it as a html page. The world of html and javascript offers endless possibilities to make this interactive, use popout messages, etc.
If you prefer svg, some information is already included in the output as <title>, and again, if served within a browser, javascript may prove useful to enrich the output (not sure if it's possible to use existing svg with raphaeljs, but it sure shows nicely what's possible with svg + javascript).
You may simply have graphviz render the positions of all nodes and parse it's output to present it in your custom application
I have been using the System.Web.UI.DataVisualization.Charting pie chart control to display pie chart.
With the introduction of IE9, these graphs seem intermittantly to not load and just present the user with an image not found.
I have decided to replace this with DevExpress's WebChartControl and implement their Pie Chart.
I got their pie to resemble ours 90%, but am stuck at getting the pie's fill to match.
This is best explained with images.
Here is my original MS Chart Pie:
Here is my new Dev Express Pie:
The old pie seems to have a shadow effect around the border that makes it look much better.
Is this kind of effect possible with the DevExpress control?
I have tried playing with:
((PieSeriesView) series.View).Border
((PieSeriesView) series.View).FillStyle
Both don't seem to do what i want.
Any help will be greatly appreciated
I tried for about an hour to get the desired result for you, but unfortunately I just can't seem to be able to get deep enough to be able to introduce a new painter with the Drawing2d.PathGradientBrush.Blend option (which would be able to give you the desired look).
I have placed a question on your behalf on the support center Q337316, you are welcomed to track this question which I would imagine will turn into a suggestion.
So although this isn't a good answer, I don't think you will be able to achieve the results in the current DX library.
We have answered this question in the RadialGradientPainter - Support PathGradientBrush.Blend thread. I've also talked to guys from the XtraCharts team. This is impossible to implement in WindowsForms Charts, but should be possible in WPF. If you are interested in this alternative, drop me a line and I will add the required information here.
Not animated of course, but good for displaying data visually such as Gantt chart etc.
why not use a javascript graphs library to draw your graphs and charts?
check out these flot examples - maybe flot is what you need
I'm not sure if i understand your question but if you want to draw images dynamically you can use GDI+ and the System.Drawing namespace. Look here for an example.
Edit: Sorry i did not see the gannt tag. Check out the following control.
You could create the image using the Graphics class, then output the file to the filesystem, and link an Image control of some sort to that image.
There is a new Chart control in ASP.NET 3.5 with a bunch of features and options, maybe you'll like it.
You can read a quick review here.
The Walter Zorn javascript library may be your answer.