轉換測量單位

VB C#

using IronSoftware.Drawing;
using System;

// Instantiate a Rectangle (Default measurement unit is pixels)
Rectangle pxCropRect = new Rectangle(15, 25, 150, 175); // (X, Y, Width, Height)

// Convert and print a Rectangle measurement in millimeters
Rectangle mmCropRect = pxCropRect.ConvertTo(MeasurementUnits.Millimeters, 20);
Console.WriteLine(mmCropRect.X);

// Instantiate a RectangleF in millimeters
IronSoftware.Drawing.RectangleF pxCropRectFloat = new IronSoftware.Drawing.RectangleF(10F, 25F, 100F, 175F, MeasurementUnits.Millimeters); // (X, Y, Width, Height, Units)

// Convert and print a RectangleF measurement in pixels
IronSoftware.Drawing.RectangleF mmCropRectFloat = pxCropRectFloat.ConvertTo(MeasurementUnits.Pixels, 30);
Console.WriteLine(mmCropRectFloat.Y);

Imports IronSoftware.Drawing
Imports System

' Instantiate a Rectangle (Default measurement unit is pixels)
Private pxCropRect As New Rectangle(15, 25, 150, 175) ' (X, Y, Width, Height)

' Convert and print a Rectangle measurement in millimeters
Private mmCropRect As Rectangle = pxCropRect.ConvertTo(MeasurementUnits.Millimeters, 20)
Console.WriteLine(mmCropRect.X)

' Instantiate a RectangleF in millimeters
Dim pxCropRectFloat As New IronSoftware.Drawing.RectangleF(10F, 25F, 100F, 175F, MeasurementUnits.Millimeters) ' (X, Y, Width, Height, Units)

' Convert and print a RectangleF measurement in pixels
Dim mmCropRectFloat As IronSoftware.Drawing.RectangleF = pxCropRectFloat.ConvertTo(MeasurementUnits.Pixels, 30)
Console.WriteLine(mmCropRectFloat.Y)

Install-Package IronSoftware.System.Drawing

轉換測量單位

IronDrawing 為想要將Rectangle或RectangleF中使用的測量單位從像素 (px) 更改為毫米 (mm) 或反之亦然的用戶提供了一個選項。 Rectangle和RectangleF中使用的預設測量單位是像素 (px)。

在實例化一個具有指定尺寸的新Rectangle後，您可以呼叫Rectangle轉換方法。例如，使用.ConvertTo(MeasurementUnits.Millimeters, 20) 。這將根據使用者設定的 DPI 將Rectangle的尺寸轉換為毫米。同樣的方法也適用於RectangleF類別。