Work Journal 2013-jan-18

Today I wrapped up the project I am working on for test release. There are still a few features which are not implemented yet, but basic functionality is working. The layout also still needs some love. At this point I’m fairly satisfied with what I have done so far. Well, considering that this was my first web project (beyond ‘hello web’-ish) and that I had very little experience with html, css and javascript before I started. My temporary colleague, Lars, did most of the backend (database work and services), so I didn’t do much there (except for the initial part of the project), which on the good side allowed me to focus almost exclusively on the frontend. In my opinion the project as a whole still suffers from the fact that the customer is not the end user, but I hope it will still be useful for the end users after all.

Today was the day the a understood that Openlayers.LonLat in Openlayers is really just a very bad name for a set of x,y-coordinates. Thanks to @tmcw - read more in the LonLat is not Longitude Latitude section of this blog post.

Another Openlayers gotcha I ran into today was that projection of geographical coordinate system to a projected coordinate system requires proj4js.

A few gis.stackexchange.com that helped me in the right direction: http://gis.stackexchange.com/questions/20482/openlayers-transform-epsg-27700-coordinate-to-google-900913 http://gis.stackexchange.com/questions/13499/how-do-i-include-proj4js-in-openlayers

I ended up only adding the necessary projections and definition to my Scripts folder and not the whole proj4js library. Like this:

Due to some problem with projections/definition not being ready when the javascript started executing (I appear not to be alone on this.) my script loading ended up with projections and definition loaded with the rest of the scripts:

    <script src="Scripts/jquery-1.8.3.min.js"></script>
    <script src="Scripts/proj4js.js"></script>
    <script src="Scripts/projcode/tmerc.js"></script>
    <script src="Scripts/projcode/merc.js"></script>
    <script src="Scripts/projcode/utm.js"></script>
    <script src="Scripts/defs/EPSG25832.js"></script>
    <script src="Scripts/openlayers/OpenLayers.js"></script>
    <script src="Scripts/bredbaandskortet_config.js"></script>
    <script src="Scripts/bredbaandskortet.mobile.js"></script>

Work Journal – a diary on what I did work/programming related today.