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Interactive map using Raphael and SVG?
Good day to all!
There is a task to make an interactive map for the Perm region, there is a map ru.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B9%D0%BB :Outline_Map_of_Perm_Krai.svg, there is a very wonderful example of how to organize this ruseller. com/lessons.php?rub=32&id=952 , this example uses the map en.wikipedia.org/wiki/File :Blank_map_of_Europe_-_Atelier_graphique_colors.svg.
Until this time, I didn’t really come across JavaScript, but there is an urgent task to implement something similar as shown in the example. Right now I can't figure it out, so I'm asking for help.
The problem is this:
I take the data from the SVG from the d="...." value, insert this data into the path, but the image is not displayed on the page. The difference is that the example uses the coordinates of the type "M 353.1856,270.01047 C 352.78938,269.87841 344.33684,265.78418 343.94062 ....", in my case coordinates of the type "M 463.53375,957.92014 -2.10173, -0.54675 1.53701,24,2424 - 0.21957,24224 - 1.31743.0 -0.21958....". As I understood from the Rapchael manual, the M and m character registers have a difference in absolute and relative positioning, but how to organize it correctly in my case remains a mystery to me.
If this method is crazy, then perhaps it makes sense to use flash / silverlight?
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@sashak you need to translate the normal SVG into a format that Raphael understands. Here on this page you can do it. First select a file, press convert, then collect Raphael. Another window opens, at first there is nothing there, you need to press Page from the top left and your map will be in a new window. The site is terrible, I barely understood it, but it works :) I managed to convert your map www.irunmywebsite.com/raphael/p_OutlineMapofPermKr...
Well, a simple parsing of your string with the replacement of characters and recalculation of coefficients will not help you?
As far as I understand, in the original format, C is followed by absolute coordinates, and in your case, offsets from the first. Try something like this:
In the php version:
$oldcoords = split(' ', $my_source_coord); // режем по пробелу "свою" строку
$newcoords = [];
$newcoords[0]='M';
$newcoords[1]=$oldcoords[1];
$newcoords[2]='C';
$basiscoords=split(',' , $oldcoords[1]); // наши базисные координаты
$coordselements=split(',' , $oldcoords[2]); // первая группа "относительных" координат
$newcoords[3]=($basiscoords[0]+$coordselements[0]) . ',' . ($basiscoords[1]+$coordselements[1]); // складываем абсолютные координаты базиса и смещения, а затем склеиваем в одну строку
// ... здесь продолжаем нужное число раз ...//
$newline = join (' ',$newcoords); // склеиваем строчку через пробел
It would also be great to provide code. I do not remember such a moment from Doki Rafael. IMHO he stupidly writes everything in g.path is in SVG PATH
If still relevant, when using Raphael, where is the map (picture) indicated on which everything is displayed?
As far as I remember, everything is indicated there in coordinates from an array of the form "M 353.1856,270.01047 C 352.78938,269.87841 344.33684,265.78418 343.94062...."
with coordinates, everything is simple and clear - this is the simplest.
apparently I'm not formulating the question correctly.... I
'm creating based on this example
htmlbook.ru/blog/postroenie-interaktivnoi-karty-s-...
the coordinates are created and placed in paths.js
but nothing is displayed on the map....
Please note that the coordinates must be absolute, not relative, I also did not display anything when I used relative coordinates.
I use, as in the example - CAPITAL letters in coordinates - absolute.
Path: 'm 172.76 659.87 C 176.90 662.90 183.03
663.86 , coordinates - also laid out in the index file and wrapped in a div - this is not indicated in the example.
I did everything according to the recommendations of notcommon
notcommon - you, so to speak, LIKE!
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