QGIS 1.7.0 Wroclaw

(Quantum GIS Wroclaw 1.7.0) We are pleased to announce the latest release in our 1.X series of releases. To download your copy, please visit the QGIS download page. This release is named after the town of Wroclaw in Poland. The Department of Climatology and Atmosphere Protection, University of Wroclaw kindly hosted our last developer meeting in November 2010. Please note that this is a release in our 'cutting edge' release series. As such it contains new features and extends the programmatic interface over QGIS 1.0.x and QGIS 1.6.0. As with any software, there may be bugs and issues that we were not able to fix in time for the release. We therefore recommend that you test this version before rolling it out en-masse to your users. You can find a list of hightlighted changes and new features listed further down this page.

QGIS Project Updates

As well as building you a shiny new version of QGIS, we have been working hard on our general project infrastructure. Noteworthy changes include:
  • A new website for devlopers to publish their plugins via is now available at http://plugins.qgis.org.
  • A new site for sharing code snippets (both C++ and Python) at site http://snippets.qgis.org.
  • We have revived our community user map which is now available at site http://users.qgis.org - please feel free to add your dot on the map - we always get a kick out of seeing just how many people are using QGIS from far-flung corners of the globe!
  • We have set up a new blog 'planet' site at http://planet.qgis.org - let us know if you want your QGIS related blog added there.
Separately from the above, we should mention two other important updates to our project. Firstly, we have moved our bug tracker from trac to redmine. The bug tracker url has changed to http://hub.qgis.org/. This is important as it allows us to create a unified destination for reporting bugs on QGIS Desktop, user contributed plugins (plugin authors need to establish a project on our redmine site first), as well as other aspects of our project. Your login should work as per usual (assuming you have an OSGEO login already). For the most part old tickets from trac can now be accessed simply by adding the old ticket number to this url: http://hub.qgis.org/issues/<ticket no > for example: http://hub.qgis.org/issues/3772.
The second important update is relevant mainly to coders and folks who like to compile QGIS from source. The source code repository has been moved from an OSGEO hosted SVN repository into a GitHub based GIT repository. GIT is a next-generation distributed source code management tool and allows considerably more flexibility in managing and sharing code and changes to code. The QGIS codebase can now be accessed at http://github.com/qgis/Quantum-GIS.

Future release plans

This will most likely be the last public point release in the 1.X series. What does that mean for you? It means that we will probably not be release a QGIS 1.8 or beyond in the 1.X series as all new development work is now going to be focused on our next major release, QGIS 2.0. In the mean time, we will continue to stabilise the work in the 1.7 release and release those improvements as minor releases (i.e. 1.7.1, 1.7.2 etc) while work on 2.0 is underway. As always we will post announcements when new releases are made.

What's new in Version 1.7.0 'Wroclaw'?

This release includes over 277 bug fixes and many new features and enhancements. Once again it is impossible to document everything here that has changed so we will just provide a bullet list of key new features here.

Symbology labels and diagrams

  • New symbology now used by default!
  • Diagram system that uses the same smart placement system as labeling-ng
  • Export and import of styles (symbology-ng).
  • Labels for rules in rule-based renderers.
  • Font marker can have an X,Y offset.
  • Line symbology:
    • Option to put marker on the central point of a line.
    • Option to put marker only on first/last vertex of a line.
    • Allow the marker line symbol layer to draw markers on each vertex.
  • Polygon symbology:
    • Rotation for svg fills.
    • Added "centroid fill" symbol layer which draws a marker on polygon's centroid.
    • Allow the line symbol layers to be used for outline of polygon (fill) symbols.
  • Labels
    • Ability to set label distance in map units.
    • Move/rotate/change label edit tools to interactively change data defined label properties.

New Tools

  • Added GUI for gdaldem.
  • Added field calculator with functions like $x, $y and $perimeter.
  • Added 'Lines to polygons' tool to vector menu.
  • Added voronoi polygon tool to Vector menu.

User interface updates

  • Allow managing missing layers in a list.
  • Zoom to group of layers.
  • 'Tip of the day' on startup. You can en/disable tips in the options panel.
  • Better organisation of menus, separate database menu added.
  • Add ability to show number of features in legend classes. Accessible via right-click legend menu.
  • General clean-ups and usability improvements.

CRS Handling

  • Show active crs in status bar.
  • Assign layer CRS to project (in the legend context menu).
  • Select default CRS for new projects.
  • Allow setting CRS for multiple layers at once.
  • Default to last selection when prompting for CRS.


  • Added AND and OR operator for raster calculator
  • '''On-the-fly reprojection of rasters added!'''
  • Proper implementation of raster providers.
  • Added raster toolbar with histogram stretch functions.

Providers and Data Handling

  • New SQLAnywhere vector provider.
  • Table join support
  • Feature form updates
  • Make NULL value string representation configurable.
  • Fix feature updates in feature form from attribute table.
  • Add support for NULL values in value maps (comboboxes).
  • Use layer names instead of ids in drop down list when loading value maps from layers.
  • Support feature form expression fields: line edits on the form which name prefix "expr_" are evaluated. Their value is interpreted as field calculator string and replaced with the calculated value.
  • Support searching for NULL in attribute table.
  • Attribute editing improvements
  • Improved interactive attribute editing in table (adding/deleting features, attribute update).
  • Allow adding of geometryless features.
  • Fixed attribute undo/redo.
  • Improved attribute handling.
  • Optionally re-use entered attribute values for next digitized feature.
  • Allow merging/assigning attribute values to a set of features.
  • Allow OGR 'save as' without attributes (for eg. DGN/DXF).

Api and Developer Centric

  • Refactored attribute dialog calls to QgsFeatureAttribute.
  • Added QgsVectorLayer::featureAdded signal.
  • Layer menu function added.
  • Added option to load c++ plugins from user specified directories. Requires application restart to activate.
  • Completely new geometry checking tool for fTools. Significantly faster, more relevant error messages, and now supports zooming to errors. See the new QgsGeometry.validateGeometry function

QGIS Server

  • Ability to specify wms service capabilities in the properties section of the project file (instead of wms_metadata.xml file).
  • Support for wms printing with GetPrint-Request.


  • Support for icons of plugins in the plugin manager dialog.
  • Removed quickprint plugin - use easyprint plugin rather from plugin repo.
  • Removed ogr convertor plugin - use 'save as' context menu rather.


  • Undo/Redo support for the print composer

Healthy Diet For Low Cholesterol

Healthy Diet For Low Cholesterol

We all know the effects of bad cholesterol in the body. Bad cholesterol accurately has to do with low-density lipoprotein's molecular transport deposits that thicken in the walls of the arteries blocking the flawless way of blood disturbing the atherogenic status of the arterial walls. 
Nevertheless, the body with high cholesterol brings cause to hypertensions and other cardiovascular disorders or lead to atherosclerosis, a disposition of fatty substances, and fibrosis of the inner arteries.

Good diet eating habits and regular work out are common in low high level of cholesterol. It is important to everybody to arrange their diet plan properly and eat healthy diet even if they have high cholesterol or normal one.

You should plan a whole week menu with cholesterol-free by adding more fresh vegetable recipes, and fiber fruits. It is much better if you could buy organic produced food or plant your own organic garden. Chemicals in foods enhance the raising in cholesterol level. Carbohydrates should be of high complex standards such as oatmeal, bran and brown rice.

Now many supermarkets provide a plenty of fresh organic vegetable so it is not difficult to by one for your meal. High fiber can reduce the LDL cholesterol because high fiber food contains very low cholesterol and some high fiber food is non cholesterol contain. Foods, that enhance low-density lipoprotein, can develop to be a total risk, and settle in the arteries during the process of the lipoprotein molecules travel to the blood stream.

Eggs contain high in cholesterol which can contribute to elevated blood cholesterol levels. If you have high LDL cholesterol, you should limit eating an egg on a given day to limit or avoid other sources of cholesterol for the rest of that day. If you like eggs but would not like the extra cholesterol, use egg whites. Egg whites contain no cholesterol.

Fish is a good source of protein and omega 3 fatty acids which perform to lower LDL cholesterol and raise HDL cholesterol. In particular, omega 3 fatty acids are noted for its triglyceride-lowering power. Eating at least 2 servings of fish a week is recommended, particularly fatty fish such as mackerel, salmon, sardines, trout and herring.

Nuts contain high in fiber, phytonutrients and antioxidants. These tasty snacks are also high in plant sterols and fat but mostly monounsaturated and polyunsaturated fats, which have all been performed to lower the bad LDL cholesterol. Other benefits of nuts are their role in heart disease prevention. Limit your intake to ~ 1.5 ounces a day, as nuts are high in calories. You can eat nuts in replacement of foods that are high in saturated fats such as meat products.

Soy products are great substitutes for animal products. The health benefits of soy are to low risk of heart disease and can still lower bad LDL cholesterol by 3 percent. Since soy products contain high levels of polyunsaturated fats, fiber, vitamins, and minerals and low levels of saturated fat, AHA does consider soy products a healthy replacement for meats and other foods high in saturated fat and total fat.

Besides eating those low cholesterol diet, you also should regular check up of your cholesterol level, so as a protection against immediate boost of cholesterol level that might lead to unwanted feasible result of a fatal hypertension, or stroke due to unprecedented cholesterol rise.

by Kritnaphat N. 

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