/// <summary>
/// Initializes a new instance of the <c>Image</c> class.
/// </summary>
/// <param name="imageDefinition">Image definition.</param>
/// <param name="position">Image <see cref="Vector3">position</see> in world coordinates.</param>
public Image(ImageDef imageDefinition, Vector3 position)
: base(EntityType.Image, DxfObjectCode.Image)
{
this.imageDef = imageDefinition;
this.position = position;
this.width = imageDefinition.Width * imageDefinition.OnePixelSize.X;
this.height = imageDefinition.Height * imageDefinition.OnePixelSize.Y;
this.rotation = 0;
this.clipping = false;
this.brightness = 50.0f;
this.contrast = 50.0f;
this.fade = 0.0f;
this.displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
this.clippingBoundary = new ImageClippingBoundary(-0.5, -0.5, imageDefinition.Width, imageDefinition.Height);
}
private Image ReadImage()
{
double posX = 0.0, posY = 0.0, posZ = 0.0;
double uX = 0.0, uY = 0.0, uZ = 0.0;
double vX = 0.0, vY = 0.0, vZ = 0.0;
double width = 0, height = 0;
string imageDefHandle = null;
ImageDisplayFlags displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
bool clipping = false;
short brightness = 50;
short contrast = 50;
short fade = 0;
ImageClippingBoundaryType boundaryType = ImageClippingBoundaryType.Rectangular;
ImageClippingBoundary clippingBoundary = null;
List<XData> xData = new List<XData>();
this.chunk.Next();
while (this.chunk.Code != 0)
{
switch (this.chunk.Code)
{
case 10:
posX = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 20:
posY = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 30:
posZ = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 11:
uX = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 21:
uY = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 31:
uZ = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 12:
vX = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 22:
vY = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 32:
vZ = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 13:
width = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 23:
height = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 340:
imageDefHandle = this.chunk.ReadString();
this.chunk.Next();
break;
case 70:
displayOptions = (ImageDisplayFlags) this.chunk.ReadShort();
this.chunk.Next();
break;
case 280:
clipping = this.chunk.ReadShort() != 0;
this.chunk.Next();
break;
case 281:
brightness = this.chunk.ReadShort();
this.chunk.Next();
break;
case 282:
contrast = this.chunk.ReadShort();
this.chunk.Next();
break;
case 283:
fade = this.chunk.ReadShort();
this.chunk.Next();
break;
case 71:
boundaryType = (ImageClippingBoundaryType) this.chunk.ReadShort();
this.chunk.Next();
break;
case 91:
int numVertexes = this.chunk.ReadInt();
List<Vector2> vertexes = new List<Vector2>();
this.chunk.Next();
for (int i = 0; i < numVertexes; i++)
{
double x = 0.0;
double y = 0.0;
if (this.chunk.Code == 14) x = this.chunk.ReadDouble();
this.chunk.Next();
if (this.chunk.Code == 24) y = this.chunk.ReadDouble();
this.chunk.Next();
vertexes.Add(new Vector2(x, y));
}
if (boundaryType == ImageClippingBoundaryType.Rectangular)
clippingBoundary = new ImageClippingBoundary(vertexes[0], vertexes[1]);
else if (boundaryType == ImageClippingBoundaryType.Polygonal)
clippingBoundary = new ImageClippingBoundary(vertexes);
else
clippingBoundary = null;
break;
case 1001:
string appId = this.DecodeEncodedNonAsciiCharacters(this.chunk.ReadString());
XData data = this.ReadXDataRecord(appId);
xData.Add(data);
break;
default:
if (this.chunk.Code >= 1000 && this.chunk.Code <= 1071)
throw new DxfInvalidCodeValueEntityException(this.chunk.Code, this.chunk.ReadString(),
"The extended data of an entity must start with the application registry code.");
this.chunk.Next();
break;
}
}
Vector3 u = new Vector3(uX, uY, uZ);
Vector3 v = new Vector3(vX, vY, vZ);
Vector3 normal = Vector3.CrossProduct(u, v);
Vector3 uOCS = MathHelper.Transform(u, normal, MathHelper.CoordinateSystem.World, MathHelper.CoordinateSystem.Object);
double rotation = Vector2.Angle(new Vector2(uOCS.X, uOCS.Y))*MathHelper.RadToDeg;
double uLength = u.Modulus();
double vLength = v.Modulus();
Image image = new Image
{
Width = width*uLength,
Height = height*vLength,
Position = new Vector3(posX, posY, posZ),
Normal = normal,
Rotation = rotation,
DisplayOptions = displayOptions,
Clipping = clipping,
Brightness = brightness,
Contrast = contrast,
Fade = fade,
ClippingBoundary = clippingBoundary
};
image.XData.AddRange(xData);
this.imgToImgDefHandles.Add(image, imageDefHandle);
return image;
}
/// <summary>
/// Initializes a new instance of the <c>Image</c> class.
/// </summary>
/// <param name="imageDefinition">Image definition.</param>
/// <param name="position">Image <see cref="Vector3">position</see> in world coordinates.</param>
/// <param name="width">Image width in world coordinates.</param>
/// <param name="height">Image height in world coordinates.</param>
public Image(ImageDef imageDefinition, Vector3 position, double width, double height)
: base(EntityType.Image, DxfObjectCode.Image)
{
this.imageDef = imageDefinition;
this.position = position;
this.width = width;
this.height = height;
this.rotation = 0;
this.clipping = false;
this.brightness = 50;
this.contrast = 50;
this.fade = 0;
this.displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
this.clippingBoundary = new ImageClippingBoundary(-0.5, -0.5, imageDefinition.Width, imageDefinition.Height);
}
private static void WriteImage()
{
ImageDef imageDef = new ImageDef("img\\image01.jpg");
Image image = new Image(imageDef, Vector3.Zero, 10, 10);
XData xdata1 = new XData(new ApplicationRegistry("netDxf"));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.String, "xData image position"));
xdata1.XDataRecord.Add(XDataRecord.OpenControlString);
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionX, image.Position.X));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionY, image.Position.Y));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionZ, image.Position.Z));
xdata1.XDataRecord.Add(XDataRecord.CloseControlString);
image.XData.Add(xdata1);
//image.Normal = new Vector3(1, 1, 1);
//image.Rotation = 30;
// you can pass a name that must be unique for the image definiton, by default it will use the file name without the extension
ImageDef imageDef2 = new ImageDef("img\\image02.jpg", "MyImage");
Image image2 = new Image(imageDef2, new Vector3(0, 150, 0), 10, 10);
Image image3 = new Image(imageDef2, new Vector3(150, 150, 0), 10, 10);
// clipping boundary definition in local coordinates
ImageClippingBoundary clip = new ImageClippingBoundary(100, 100, 500, 300);
image.ClippingBoundary = clip;
// set to null to restore the default clipping boundary (full image)
image.ClippingBoundary = null;
// images can be part of a block definition
Block block = new Block("ImageBlock");
block.Entities.Add(image2);
block.Entities.Add(image3);
Insert insert = new Insert(block, new Vector3(0, 100, 0));
DxfDocument dxf = new DxfDocument();
dxf.AddEntity(image);
//dxf.AddEntity(image2);
//dxf.AddEntity(image3);
dxf.AddEntity(insert);
dxf.Save("image.dxf");
dxf = DxfDocument.Load("image.dxf");
dxf.DrawingVariables.AcadVer = DxfVersion.AutoCad2010;
dxf.Save("image.dxf");
//dxf.RemoveEntity(image2);
//dxf.Save("image2.dxf");
//dxf.RemoveEntity(image3);
//dxf.RemoveEntity(image);
//dxf.Save("image3.dxf");
}