70 lines
2.9 KiB
C#
70 lines
2.9 KiB
C#
#region PDFsharp - A .NET library for processing PDF
|
||
//
|
||
// Authors:
|
||
// Stefan Lange
|
||
//
|
||
// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
|
||
//
|
||
// http://www.pdfsharp.com
|
||
// http://sourceforge.net/projects/pdfsharp
|
||
//
|
||
// Permission is hereby granted, free of charge, to any person obtaining a
|
||
// copy of this software and associated documentation files (the "Software"),
|
||
// to deal in the Software without restriction, including without limitation
|
||
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
// and/or sell copies of the Software, and to permit persons to whom the
|
||
// Software is furnished to do so, subject to the following conditions:
|
||
//
|
||
// The above copyright notice and this permission notice shall be included
|
||
// in all copies or substantial portions of the Software.
|
||
//
|
||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||
// DEALINGS IN THE SOFTWARE.
|
||
#endregion
|
||
|
||
using System;
|
||
|
||
namespace PdfSharp
|
||
{
|
||
/// <summary>
|
||
/// Floating point formatting.
|
||
/// </summary>
|
||
static class Config
|
||
{
|
||
public const string SignificantFigures2 = "0.##";
|
||
public const string SignificantFigures3 = "0.###";
|
||
public const string SignificantFigures4 = "0.####";
|
||
public const string SignificantFigures7 = "0.#######";
|
||
public const string SignificantFigures10 = "0.##########";
|
||
public const string SignificantFigures1Plus9 = "0.0#########";
|
||
}
|
||
|
||
static class Const
|
||
{
|
||
/// <summary>
|
||
/// Factor to convert from degree to radian measure.
|
||
/// </summary>
|
||
public const double Deg2Rad = Math.PI / 180; // = 0.017453292519943295
|
||
|
||
/// <summary>
|
||
/// Sinus of the angle to turn a regular font to look oblique. Used for italic simulation.
|
||
/// </summary>
|
||
public const double ItalicSkewAngleSinus = 0.34202014332566873304409961468226; // = sin(20°)
|
||
|
||
/// <summary>
|
||
/// Factor of the em size of a regular font to look bold. Used for bold simulation.
|
||
/// Value of 2% found in original XPS 1.0 documentation.
|
||
/// </summary>
|
||
public const double BoldEmphasis = 0.02;
|
||
|
||
// The κ (kappa) for drawing a circle or an ellipse with four Bézier splines, specifying the distance of the influence point from the starting or end point of a spline.
|
||
// Petzold: 4/3 * tan(α / 4)
|
||
public const double κ = 0.5522847498307933984022516322796; // := 4/3 * (1 - cos(-π/4)) / sin(π/4)) <=> 4/3 * (sqrt(2) - 1) <=> 4/3 * tan(π/8)
|
||
}
|
||
}
|