heltonbiker / mapcomplete Goto Github PK

Reat the milestone description for details. Considering the requirements discribed there, my initial suggestion would be to use

PyQt

...due to:

• Great graphics (lots of dedicated graphics-intensive classes);
• (expand...)

I believe that, if a good application happens do emerge from this project, it would be "unfair" to tie it to a given platform/language/toolkit.

A good example would be to think about Google Earth. It surely could (theoretically) be reimplemented using WPF, since it has 3D support and a lot of graphical objects (performance might be a well known issue, though).

The very implementation details of each platform would help to keep a separation between elements of the problem - which should not vary between implementations - and elements that pertain to a given platform.

This project has started, but nothing has happened yet. It is necessary to do something about it.

• How would be the menu structure? If you go to "File" menu, network link is not a file. Perhaps an "Open" menu, with options "KML File" and "KML Link"?
• Besides being displayed in graph, there should also be a side panel with the tree structure of the KML, right?

We need the "Go to My Location" command, so the map "jumps" to the current user location.

• Some user confirmation is needed

When we plot the tiled background using smoothed tiles, there can be gaps between them.

A possible solution would be to create a larger pixmap, concatenating the pixmaps for the given viewport, and paint that pixmap instead of the smaller ones.

• When application opens, a certain "part of the world" is displayed at its center, at a given zoom level;
• The zoom level should be "evident" by the tile labels (larger numbers mean larger zoom level);
• The zoom should have integer increments, and at each level all displayed tiles must have 256x256 pixels of size;
• The tiles must have a black solid border with 1px thickness;

Yet Another Python KML Library?

There are already some interesting Kml codebases in Python:

• (TODO: add examples)

...and in other languages:

• (TODO: add examples in other languages)

But in the same way current map editor applications (Google Earth, Marble, Google MyMaps, etc.) fall short in one aspect or another, so it seems to be with the mentioned examples above.

(TODO: elaborate further)

There are a lot of dead ends in the original submission of PyQt sample code. This should eventually be cleaned up.

Actually, we have no installer, no packaging, or anything to differentiate the current set of modules and scripts between a "true" application and just a set of scripts.

Title is self explanatory (I guess). Discussion is most welcome! :o)

Some information to possibly do that is available here:

http://doc.qt.io/qt-4.8/qt-itemviews-simpledommodel-example.html