public static void WriteEvalToTypesetExpression(IMathLink ml, object obj, int pageWidth, string graphicsFmt, bool useStdForm)
{
ml.PutFunction("EvaluatePacket", 1);
int numArgs = 2 + (useStdForm ? 0 : 1) + (pageWidth > 0 ? 1 : 0);
ml.PutFunction("EvaluateToTypeset", numArgs);
ml.Put(obj);
if (!useStdForm)
{
ml.PutSymbol("TraditionalForm");
}
if (pageWidth > 0)
{
ml.Put(pageWidth);
}
ml.Put(graphicsFmt);
ml.EndPacket();
}
public static void WriteEvalToImageExpression(IMathLink ml, object obj, int width, int height, string graphicsFmt, int dpi, bool useFE)
{
ml.PutFunction("EvaluatePacket", 1);
int numArgs = 2 + (useFE ? 1 : 0) + (dpi > 0 ? 1 : 0) + (width > 0 || height > 0 ? 1 : 0);
ml.PutFunction("EvaluateToImage", numArgs);
ml.Put(obj);
if (useFE)
{
ml.Put(true);
}
ml.Put(graphicsFmt);
if (dpi > 0)
{
ml.PutFunction("Rule", 2);
ml.PutSymbol("ImageResolution");
ml.Put(dpi);
}
if (width > 0 || height > 0)
{
ml.PutFunction("Rule", 2);
ml.PutSymbol("ImageSize");
ml.PutFunction("List", 2);
if (width > 0)
{
ml.Put(width);
}
else
{
ml.PutSymbol("Automatic");
}
if (height > 0)
{
ml.Put(height);
}
else
{
ml.PutSymbol("Automatic");
}
}
ml.EndPacket();
}
// These next methods are called by implementors of the KernelLink "evaluateTo" methods. It is useful to separate the
// code to create the appropriate expression to send (which is what these methods do) and the code that runs the
// reading loop. In these methods, obj must be a string or Expr.
// This is ready to accommodate an evaluateToMathML() function, but I have not added such a function to KernelLink yet.
public static void WriteEvalToStringExpression(IMathLink ml, Object obj, int pageWidth, string format)
{
ml.PutFunction("EvaluatePacket", 1);
ml.PutFunction("ToString", 3);
if (obj is string)
{
ml.PutFunction("ToExpression", 1);
}
ml.Put(obj);
ml.PutFunction("Rule", 2);
ml.PutSymbol("FormatType");
ml.PutSymbol(format);
ml.PutFunction("Rule", 2);
ml.PutSymbol("PageWidth");
if (pageWidth > 0)
{
ml.Put(pageWidth);
}
else
{
ml.PutSymbol("Infinity");
}
ml.EndPacket();
}
public override void EndPacket()
{
impl.EndPacket();
}