lutraconsulting/qgis-crayfish-plugin

Plotting and manipulating mesh data in QGIS.

qgis-crayfish-plugin's Issues

Crayfish is not able to load depth grid

The error message has been produced in Windows 64 bit across 2 PCs.

An error has occured while executing Python code:

Traceback (most recent call last):
File "C:/Users/Saber/.qgis//python/plugins\crayfish\crayfish_plugin.py", line 318, in run
assert( parentLayer is not None)
AssertionError

Python version:
2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)]

QGIS version:
1.8.0-Lisboa Lisboa, 3d2bcfc

Python path: ['C:/OSGeo4W/apps/qgis/./python', 'C:/Users/Saber/.qgis//python', 'C:/Users/Saber/.qgis//python/plugins', 'C:/OSGeo4W/apps/qgis/./python/plugins', 'C:\OSGeo4W\bin\python27.zip', 'C:\OSGeo4W\apps\Python27\DLLs', 'C:\OSGeo4W\apps\Python27\lib', 'C:\OSGeo4W\apps\Python27\lib\plat-win', 'C:\OSGeo4W\apps\Python27\lib\lib-tk', 'C:\OSGeo4W\apps\qgis\bin', 'C:\OSGeo4W\apps\Python27', 'C:\OSGeo4W\apps\Python27\lib\site-packages', 'C:\OSGeo4W\apps\Python27\lib\site-packages\PIL', 'C:\OSGeo4W\apps\Python27\lib\site-packages\win32', 'C:\OSGeo4W\apps\Python27\lib\site-packages\win32\lib', 'C:\OSGeo4W\apps\Python27\lib\site-packages\Pythonwin', 'C:\OSGeo4W\apps\Python27\lib\site-packages\wx-2.8-msw-unicode', 'C:\OSGeo4W\apps\qgis\python\plugins\fTools\tools']

Display Contours

When un-ticking the box for Display Contour, it does not turn-off the layer.

OS: Windows 7 - 64 bit
QGIS: 1.8.0-Lisboa
Plugin: 0.1

Ghost max value layer

To have the max value/extent as a mask layer (optionally) always on .

Finalise full support for vector data

This includes:
Displaying vectors on user-defined grid
Filtering vectors by magnitude

Datasets can be loaded twice

Subsequent loads of the same .dat file add a dataset as a duplicate.

Transparency for Contours

Should be a simple slider (for the moment) in-place of the Contour Options button.

Crayfish layer affects "Control rendering order" in QGIS

When a new Crayfish layer is added to the QGIS canvas, it affects the rendering of the layers. For example the layers which are set to be OFF are still shown on the canvas. The temporary solution is to tick and then untick the box for Control rendering order so that it refreshes the visible layers.

Support for triangular elements

TUFLOW WLLs use triangular elements. Crayfish needs to support these element types to be able to visualise results in the watercourse.

QGIS raster and vector tools work on Crayfish dataset

It would be great to have the Crayfish layers registered in QGIS as normal raster and vector layers, so that other plugins and tools work on the data. Fore example, users can then easily interrogate dataset values using Value Tool and Profile.

User-defined contour min/max not remembered (regression)

Version 1.0.3 remembered the user's selection for min/max contour options. This functionality seems to no longer work.

Steps to reproduce:

1 Load a .dat file
2 Select a time step with values shown
3 Enable Specify Colour Scale option
4 Change min and max values (e.g. to 2 and 4)
5 Disable Specify Colour Scale option
6 Enable (again) Specify Colour Scale option

Expected behaviour: After 6, the values of 2 and 4 should be remembered and rendered.

This appears to be a regression bug.

Support for all TUFLOW SMS Elements

Plot time-series of data

It would be useful to be able to plot time-series data for points, lines and polygons.

Perhaps:

User can select existing lines, points or polygons; or draw them on-the-fly

• Scalar results can be plotted for points.
• Flow could be plotted crossing a line.
• Volume could be plotted within the bounds of a polygon

All cells are shown (active) in direct-rainfall models.

The cell / element activity flag will likely be switched on throughout the mode during a direct rainfall simulation. In this situation, a feature would be required to allow the user to specify a value under (or over) which pixels will not be rendered.

This would allow only depths over a threshold (e.g. 2mm) to be visualised, making the result visualisation more useful.

Support for locking time between datasets in a layer

When the user loads multiple datasets (into a single crayfish layer), the output times displayed in each dataset are not kept in sync.

It would be good to have an option to 'lock' the times together within a layer.

Support Profile Tool and Value Tool (QGIS Plugins)

Creating animation

A feature to record animation of dataseries over time and save it as avi.

Crayfish causes random QGIS behviour in loading vector layers

After adding Crayfish layer, adding vector layer becomes temperamental. QGIS often fails to load any vector. No error message appears.

QGIS 1.8
Win 7, 64bit

Antialiasing for vector results

XMDF Support

Legend

It would be great having a legend similar to legend in QGIS.

Crayfish and project CRS

If Crayfish layer is the first layer to be loaded in QGIS and canvas projection is set to be set based on the first loaded layer, the project (canvas) CRS turns into blank at the bottom right corner.
This will cause problem, if the user decides to use projection on-the-fly at later stage.

Support simultaneous visualisation of a scalar and vector dataset

Save all layer settings to project file

Ensure that all rendering settings are saved to the project file.

Incorrect contour of triangles when zoomed out

Triangle contours look different (and wrong) when zoomed out than when zoomed in. Occurs when triangles are sub-pixel in size.

Note the two different rendering methods depending on whether the element is bigger or smaller than 1px.

Crayfish layer makes QGIS Project file (qgs) unreadable

When a Project which contains a Crayfish layer is saved, QGIS will not be able to open it and comes up with Bad Allocation error message.

The work around is to remove the layer in qgs file.

Windows 7, 64 bit
QGIS 1.8

Colour scale

When updating the "Specify Colour Scale" boxes for Min and Max, no updates of colors for contours happens on the screen.
OS: Windows 7 - 64 bit
QGIS: 1.8.0-Lisboa
Plugin: 0.1

x64 Build for Windows

Large dataset support

Currently, Crayfish loads entire datasets into memory. Very large layers result in a bad allocation.

It would be better to load some of the dataset into memory and have functionality for loading the required output steps into memory automatically as required.

Support for exporting output times as grids

Display mesh related data

Mesh extent
Elements and nodes (and their IDs)

Holding up/down arrow on output times doesn't give a smooth animation

When holding down the up/down arrow on the output times, the plugin should render each output step (animating) before attempting to render the next output time. At present it will miss large chunks of results, leading to a rather dodgy animation.

About page doesn't feature version information

Implement full support for contouring options

To include user-defined colour ramps

How to install it on Ubuntu 12.04

I've tried several times. But i can't successfully install it finally. Can you provide more detailed instructions to install it on Linux?

Dock does not appear in the place I last docked it when re-opening QGIS

No mesh is visible

A feature to be able to view mesh elements as wireframe in QGIS.

Create animation

Feature to generate animation from timeseries would be great.

Maximum and Minimum contour values

Specifying non-numeric values in Max and Min contour values causing the plugin to crash.

Unnecessary error/warning message

If you click Add Crayfish Layer and then click Cancel in the new window, it comes up with an error message saying the selected file is not supported. The default behavior should be close with no warning or error message.
Qgis: 1.8.0-Lisboa
Crayfish: 0.1
Windows 64-bit

Paths written to project file are absolute

These should respect the user's settings of whether file paths should be absolute or relative.

Crayfish velocity layer causes QGIS to crash

Adding a velocity.dat (~1.2 GB) Crayfish layer crashes QGIS? If it is due to the large size of the file, it should warn the user.

Sample data are available to test.

Support for contour min/max from polyline

A feature that allows the user to create a new QGIS rubber-band (polyline) with which they draw a section in the canvas.

Crayfish then looks at the values through the polyline and adjusts the countour options min/max values accordingly.

Dock position not remembered

When the last crayfish layer is closed, the dock is automatically closed. When the dock is subsequently re-opened, it always appears in the same place and does not remember where the user last put it.

Support for Projection-on-the-fly

Triangular mesh in 2dm

It does not support triangular mesh created with water level lines for 1D channel.
QGIS: 1.8.0-Lisboa
Crayfish: 0.1

Support simultaneous display of independant quantities

Crayfish and multiple 2D domains

Crayfish seems to have problem rendering the output from multiple domains at the point where domains join.

Crayfish does not prompt user to browse for unfound .2dm files

When loading a .dat file (e.g. Model_D.dat), Crayfish will guess the name of the .2dm based on a naming convention. It will guess it as Model.2dm

If the mesh file cannot be found (at present), then Crayfish simply fails to load the layer. A more ideal behaviour would be (in the event of not finding the .2dm) to prompt the user to find it.

Checks would have to be made (if not already done) that the user has selected a 'compatible' mesh (same number of nodes / elements and the .dat file expects).

WORKAROUND - At present, the user must rename the .2dm file to be in line with the naming convention that Crayfish assumes at present.

Triangular mesh generation

Are there other people, interested in triangular mesh generation within QGIS?

I have been thinking about this for while. But I'm not sure if it is feasible.
I also don't know if QGIS is capable to provide similar functionality as for
example
SMS.

Support for exporting vector information

Support exporting vector (e.g. velocity) data as some kind of vector dataset