Code Less, Find more oilQt in Use at Midland Valley
Introduction
• What Midland Valley does
• Deploying Qt
• Qt as our users see it
• Qt as our developers see it
writing better software - writing software better
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Qt used for finding Oil & Gold
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Delft University of Technology
Qt used for finding Oil & Gold
• Oil & Gas E & P
– 2D Line Restoration &
validation
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Qt used for finding Oil & Gold
• Oil & Gas E & P
– Full 3D structural modelling
• basin modelling
• fracture modelling
• sediment modelling
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Qt used for finding Oil & Gold
• Minerals
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Qt used for finding Oil & Gold
• Carbon Capture & Storage
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Qt used for finding Oil & Gold
• Radioactive Waste Disposal
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Qt used for finding Oil & Gold
• Geological Surveys and Government Institutes
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Qt used for finding Oil & Gold
• University Teaching
and Research
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Qt used for finding Oil & Gold
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Life BQ (Before Qt)
• Multi-platform environment
• 2DMove
– Win32/MFC
– Linux/SunOS/Irix through Mainwin
• 3DMove
– Unix Motif
Introducing Qt in MVE
• 4DMove, using Qt from day one
• Windows and Linux
• Easy to use UI & Workflows
• 3D View using Coin/SoQt
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It’s all Qt now
• All products ported to Qt
– 3DMove in 2007,
– 2DMove in 2008
• All products released as
one, using launcher
• Windows and Linux, 32 and 64 bits
• One common toolkit, one common code base
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Model / Views
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Graphics - 1
• Painter, plots
• Screen shots here
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Graphics - 2
• QGraphicsView
• Screen shot here
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Graphics – 3(D)
• Coin, SoQt, Quarter
• Screen shot here
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WebKit and Google Maps
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Writing Better Software
• Rich set of widgets
• Designer
• Support libraries!
– WebKit, QtConcurrent,
QOpenGL, Network,
XML, Help...
• Qt makes hard things easy
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• Send objects from C++ to JavaScript
C++ and JavaScript talk WebKit
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webpage->mainFrame()->addToJavaScriptWindowObject("mapController", controller );
void renderInWebPage(QObject* object, double lat, double lng){
object->setProperty("name", QVariant("name"));object->setProperty("lat", QVariant(lat)); object->setProperty("long", QVariant(lng)); webpage->mainFrame()->addToJavaScriptWindowObject("myObject", object );webpage->mainFrame()->evaluateJavaScript("renderObject(myObject);"));
}
webpage->mainFrame()->addToJavaScriptWindowObject("mapController", controller );
void renderInWebPage(QObject* object, double lat, double lng){
object->setProperty("name", QVariant("name"));object->setProperty("lat", QVariant(lat)); object->setProperty("long", QVariant(lng)); webpage->mainFrame()->addToJavaScriptWindowObject("myObject", object );webpage->mainFrame()->evaluateJavaScript("renderObject(myObject);"));
}
void renderObject(object){
var ov = new GMarker(new GLatLng(geo.lat, geo.long));var infoHtml = geo.description ? geo.description : geo.name;map.addOverlay(ov);ov.bindInfoWindowHtml(infoHtml);var el = GEvent.addListener(ov, "click", function() {
if(mapController) mapController.geoClick(geo.id);});
}
void renderObject(object){
var ov = new GMarker(new GLatLng(geo.lat, geo.long));var infoHtml = geo.description ? geo.description : geo.name;map.addOverlay(ov);ov.bindInfoWindowHtml(infoHtml);var el = GEvent.addListener(ov, "click", function() {
if(mapController) mapController.geoClick(geo.id);});
}
• Use objects in JavaScript and call back C++
• Old Single Threaded
QtConcurrent
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// now unfold the passive bedsfor(int i=0; i<_passiveBedSize; i++){
restorePassiveBed(_toRestore[i], _passiveObjects[i], refPlaneNormal, refPlane, forward);
}
// now unfold the passive bedsfor(int i=0; i<_passiveBedSize; i++){
restorePassiveBed(_toRestore[i], _passiveObjects[i], refPlaneNormal, refPlane, forward);
}
QFutureSynchronizer<void> synchronizer;
// now unfold the passive bedsfor(int i=0; i<_passiveBedSize; i++){
QFuture<bool> future = QtConcurrent::run(this, &mveFlexuralUnfolder::restorePassiveBed, _toRestore[i], _passiveObjects[i], refPlaneNormal, refPlane, forward);
synchronizer.addFuture(future);}
synchronizer.waitForFinished();
QFutureSynchronizer<void> synchronizer;
// now unfold the passive bedsfor(int i=0; i<_passiveBedSize; i++){
QFuture<bool> future = QtConcurrent::run(this, &mveFlexuralUnfolder::restorePassiveBed, _toRestore[i], _passiveObjects[i], refPlaneNormal, refPlane, forward);
synchronizer.addFuture(future);}
synchronizer.waitForFinished();
• New Fast Parallel
Writing Software Better
• Several platforms, One code
• Build system, devenv integration
• Reusable UI
– Custom widgets
– Designer Plugins
• Unit testing
• Trolltech/Nokia support
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Custom Widgets & Designer Plugin
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Unit Testing
• UI for unit testing
• Selective test
execution
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Conclusion
• Better software
– Rich UI, integrate with modern technology
– Improve workflows and provide richer functionnality
• Better tool
– Streamline development cycle
– Improve stability and quality
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