public AddLineLoadDialog( SlopeCanvas canvas , LineLoad load )
{
InitializeComponent();
this.canvas = canvas;
this.load = load;
// get units dependent scaling factor and strings
double factor;
string coordUnits , loadUnits;
switch ( canvas.Units )
{
case Units.Metres: factor = 0.0254; coordUnits = "m"; loadUnits = "kN/m"; break;
case Units.Millimetres: factor = 25.4; coordUnits = "mm"; loadUnits = "kN/m"; break;
case Units.Feet: factor = 1.0 / 12.0; coordUnits = "ft"; loadUnits = "lbf/ft"; break;
default: factor = 1.0; coordUnits = "in"; loadUnits = "lbf/ft"; break;
}
// set units labels
node1Units.Content = coordUnits;
node2Units.Content = coordUnits;
nLoad1Units.Content = loadUnits;
nLoad2Units.Content = loadUnits;
tLoad1Units.Content = loadUnits;
tLoad2Units.Content = loadUnits;
// set node coordinates
double xCoord , yCoord;
xCoord = (load.Nodes[0].Point.X - canvas.OriginOffsetX) / canvas.DpiX * factor * canvas.Scale;
yCoord = (canvas.ActualHeight - load.Nodes[0].Point.Y - canvas.OriginOffsetY) / canvas.DpiY * factor * canvas.Scale;
coords1.Content = string.Format( "({0}, {1})" , Math.Round( xCoord , 2 ) , Math.Round( yCoord , 2 ) );
xCoord = (load.Nodes[1].Point.X - canvas.OriginOffsetX) / canvas.DpiX * factor * canvas.Scale;
yCoord = (canvas.ActualHeight - load.Nodes[1].Point.Y - canvas.OriginOffsetY) / canvas.DpiY * factor * canvas.Scale;
coords2.Content = string.Format( "({0}, {1})" , Math.Round( xCoord , 2 ) , Math.Round( yCoord , 2 ) );
// set existing load values (if present)
isLoadedN.IsChecked = nLoad1.IsEnabled = nLoad2.IsEnabled = load.IsLoadedN;
nLoad1.Text = string.Format( "{0}" , Math.Round( load.NLoad1 , 2 ) );
nLoad2.Text = string.Format( "{0}" , Math.Round( load.NLoad2 , 2 ) );
isLoadedT.IsChecked = tLoad1.IsEnabled = tLoad2.IsEnabled = load.IsLoadedT;
tLoad1.Text = string.Format( "{0}" , Math.Round( load.TLoad1 , 2 ) );
tLoad2.Text = string.Format( "{0}" , Math.Round( load.TLoad2 , 2 ) );
}
public void ApplyLineLoad( DrawingPoint p1 , DrawingPoint p2 )
{
// find point indices in list
int index1 = BoundaryPoints.FindIndex( delegate( DrawingPoint p ) { return p == p1; } );
int index2 = BoundaryPoints.FindIndex( delegate( DrawingPoint p ) { return p == p2; } );
// if points were not successfully found
if ( index1 == -1 || index2 == -1 )
{
MessageBox.Show( "Points not found on block." , "Line Load Error" );
return;
}
// ensure max and min as appropriate
if ( ((index1 > index2) && !(index2 == 0 && index1 == BoundaryPoints.Count - 1))
|| (index1 == 0 && index2 == BoundaryPoints.Count - 1) )
{
int tmp = index1;
index1 = index2;
index2 = tmp;
DrawingPoint tmpPt = p1;
p1 = p2;
p2 = tmpPt;
}
// points must be adjacent and different
if ( (index2 - index1) == 1 || (index2 == 0 && index1 == BoundaryPoints.Count - 1) )
{
// check if a line load has already been defined between these two objects
LineLoad load = lineLoads.Find( delegate( LineLoad l ) { return l.Nodes[0] == p1 && l.Nodes[1] == p2; } );
// if undefined, create a new line load object
if ( load == null )
{
load = new LineLoad( canvas , p1 , p2 , false , 0 , 0 , false , 0 , 0 );
//lineLoads.Add( load );
}
bool prevLoadedN = load.IsLoadedN , prevLoadedT = load.IsLoadedT;
// start dialog for user input
AddLineLoadDialog dlg = new AddLineLoadDialog( canvas , load );
dlg.ShowDialog();
// if there is no load in normal or tangential direction, delete the load ...
if ( !load.IsLoadedN && !load.IsLoadedT )
{
load.Delete();
//lineLoads.Remove( load );
canvas.MaterialBlocks.ForEach( delegate( MaterialBlock mb ) { mb.LineLoads.Remove( load ); } );
}
// ... otherwise update its visibility and plotting location
else
{
load.Update();
}
if ( dlg.DialogResult == true )
{
bool newLoadedN = load.IsLoadedN;
if ( newLoadedN != prevLoadedN )
{
for ( int i = 0 ; i < load.PhaseActiveN.Count ; i++ )
{
load.PhaseActiveN[i] = newLoadedN;
load.PhaseFactorN[i] = newLoadedN ? 1.0 : 0.0;
}
}
bool newLoadedT = load.IsLoadedT;
if ( newLoadedT != prevLoadedT )
{
for ( int i = 0 ; i < load.PhaseActiveT.Count ; i++ )
{
load.PhaseActiveT[i] = newLoadedT;
load.PhaseFactorT[i] = newLoadedT ? 1.0 : 0.0;
}
}
canvas.IsSaved = false;
canvas.IsVerified = false;
}
}
else
{
MessageBox.Show( "Points must be different and adjacent." , "Line Load Error" );
}
}
public DrawingPoint AddPoint( DrawingPoint p1 , DrawingPoint p2, DrawingPoint pNew )
{
// find point indices in list
int index1 = BoundaryPoints.FindIndex( delegate( DrawingPoint p ) { return p == p1; } );
int index2 = BoundaryPoints.FindIndex( delegate( DrawingPoint p ) { return p == p2; } );
// if points were not successfully found
if ( index1 == -1 || index2 == -1 )
{
MessageBox.Show( "Points not found on block." , "Error" );
return null;
}
// ensure max and min as appropriate
if ( ((index1 > index2) && !(index2 == 0 && index1 == BoundaryPoints.Count - 1))
|| (index1 == 0 && index2 == BoundaryPoints.Count - 1) )
{
int tmp = index1;
index1 = index2;
index2 = tmp;
DrawingPoint tmpPt = p1;
p1 = p2;
p2 = tmpPt;
}
DrawingPoint newNode;
Point newPoint;
if ( (index2 - index1) == 1 )
{
if ( pNew == null )
{
newPoint = new Point( 0.5 * (p1.Point.X + p2.Point.X) , 0.5 * (p1.Point.Y + p2.Point.Y) );
newNode = new DrawingPoint( canvas , this , newPoint );
}
else
{
newNode = pNew;
newNode.ParentBlocks.Add( this );
newPoint = pNew.Point;
}
BoundaryPoints.Insert( index2 , newNode );
Boundary.Points.Insert( index2 , newPoint );
}
else if ( index2 == 0 && index1 == BoundaryPoints.Count - 1 )
{
if ( pNew == null )
{
newPoint = new Point( 0.5 * (p1.Point.X + p2.Point.X) , 0.5 * (p1.Point.Y + p2.Point.Y) );
newNode = new DrawingPoint( canvas , this , newPoint );
}
else
{
newNode = pNew;
newNode.ParentBlocks.Add( this );
newPoint = pNew.Point;
}
BoundaryPoints.Add( newNode );
Boundary.Points.Add( newPoint );
}
else
{
MessageBox.Show( "Points must be different and adjacent." , "Error" );
return null;
}
// if a line constraint exists between these two points, remove it and create two in its place
List<LineConstraint> existingLCs = new List<LineConstraint>();
List<MaterialBlock> existingParents = new List<MaterialBlock>();
canvas.MaterialBlocks.ForEach(
delegate( MaterialBlock mb )
{
existingLCs.AddRange( mb.LineConstraints.FindAll(
delegate( LineConstraint lc )
{
if ( lc.Nodes.Contains( p1 ) && lc.Nodes.Contains( p2 ) )
{
existingParents.Add( mb );
return true;
}
else return false;
} ) );
} );
// create the two new line constraints
LineConstraint newLC1 = new LineConstraint( canvas , p1 , newNode , false , false );
LineConstraint newLC2 = new LineConstraint( canvas , newNode , p2 , false , false );
existingLCs.ForEach(
delegate( LineConstraint lc )
{
// match the new node fixity to the line constraint
newNode.IsFixedX = newNode.IsFixedX || lc.IsFixedX;
newNode.IsFixedY = newNode.IsFixedY || lc.IsFixedY;
newLC1.IsFixedX = newLC1.IsFixedX || lc.IsFixedX;
newLC1.IsFixedY = newLC1.IsFixedY || lc.IsFixedY;
newLC2.IsFixedX = newLC2.IsFixedX || lc.IsFixedX;
newLC2.IsFixedY = newLC2.IsFixedY || lc.IsFixedY;
// clear the existing plotting lines, remove the existing constraint, and add the new constraints
existingParents.ForEach( delegate( MaterialBlock mb ) { mb.LineConstraints.Remove( lc ); } );
lc.Delete();
} );
existingParents.ForEach( delegate( MaterialBlock mb ) { mb.LineConstraints.Add( newLC1 ); mb.LineConstraints.Add( newLC2 ); } );
existingLCs.Clear(); existingParents.Clear();
// if a line load exists between these two points, remove it and create two in its place
List<LineLoad> existingLLs = new List<LineLoad>();
canvas.MaterialBlocks.ForEach(
delegate( MaterialBlock mb )
{
existingLLs.AddRange( mb.LineLoads.FindAll(
delegate( LineLoad ll )
{
if ( ll.Nodes.Contains( p1 ) && ll.Nodes.Contains( p2 ) )
{
existingParents.Add( mb );
return true;
}
else return false;
} ) );
} );
LineLoad newLL1 = new LineLoad( canvas , p1 , newNode , false , 0 , 0 , false , 0 , 0 );
LineLoad newLL2 = new LineLoad( canvas , newNode , p2 , false , 0 , 0 , false , 0 , 0 );
existingLLs.ForEach(
delegate( LineLoad ll )
{
newLL1.IsLoadedN = newLL1.IsLoadedN || ll.IsLoadedN;
if ( newLL1.IsLoadedN )
{
newLL1.NLoad1 += ll.NLoad1;
newLL1.NLoad2 += 0.5 * (ll.NLoad1 + ll.NLoad2);
}
newLL1.IsLoadedT = newLL1.IsLoadedT || ll.IsLoadedT;
if ( newLL1.IsLoadedT )
{
newLL1.TLoad1 += ll.TLoad1;
newLL1.TLoad2 += 0.5 * (ll.TLoad1 + ll.TLoad2);
}
newLL2.IsLoadedN = newLL2.IsLoadedN || ll.IsLoadedN;
if ( newLL2.IsLoadedN )
{
newLL2.NLoad1 += 0.5 * (ll.NLoad1 + ll.NLoad2);
newLL2.NLoad2 += ll.NLoad2;
}
newLL2.IsLoadedT = newLL2.IsLoadedT || ll.IsLoadedT;
if ( newLL2.IsLoadedT )
{
newLL2.TLoad1 += 0.5 * (ll.TLoad1 + ll.TLoad2);
newLL2.TLoad2 += ll.TLoad2;
}
// clear the existing plotting lines, remove the existing line load, and add the new line loads
existingParents.ForEach( delegate( MaterialBlock mb ) { mb.LineLoads.Remove( ll ); } );
ll.Delete();
} );
LineLoads.Add( newLL1 ); LineLoads.Add( newLL2 );
existingLLs.Clear(); existingParents.Clear();
foreach ( MaterialBlock mb in canvas.MaterialBlocks )
{
for ( int i = mb.LineLoads.Count - 1 ; i >= 0 ; i-- )
{
if ( !mb.LineLoads[i].IsLoadedN && !mb.LineLoads[i].IsLoadedT )
{
mb.LineLoads[i].Delete();
mb.LineLoads.RemoveAt( i );
}
}
for ( int i = mb.LineConstraints.Count - 1 ; i >= 0 ; i-- )
{
if ( !mb.LineConstraints[i].IsFixedX && !mb.LineConstraints[i].IsFixedY )
{
mb.LineConstraints[i].Delete();
mb.LineConstraints.RemoveAt( i );
}
}
}
canvas.IsSaved = false;
canvas.IsVerified = false;
return newNode;
}