unit-conversion | 易学教程

Convert Excel column width between characters unit and pixels (points)

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问题 "One unit of column width is equal to the width of one character in the Normal style. For proportional fonts, the width of the character 0 (zero) is used." So ColumnWidth in Excel is measured as a number of "0" characters which fits in a column. How can this value be converted into pixels and vice versa? 回答1: As already mentioned ColumnWidth value in Excel depends on default font of a Workbook which can be obtained via Workbook.Styles("Normal").Font . Also it depends on current screen DPI.

Conversion Between Fahrenheit and Celsius ISSUE

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问题 i have this problem from a beginning c sharp book this for conversion between Fahrenheit and Celsius. private void button1_Click(object sender, EventArgs e) { float fahr, cel; if (Celsius.Checked == true) { fahr = float.Parse(textBox1.Text); cel = (5/9)*(fahr-32); richTextBox1.Text = "The Degree in Celsius is:" + cel.ToString() + Environment.NewLine + "cool isn't it!?"; } else if (Fahrenheit.Checked == true ) { cel = float.Parse(textBox1.Text); fahr = ((9 * cel)/5)+ 32; richTextBox1.Text =

PDFBox converting inches or centimeters into the coordinate system

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问题 I am new to PDFBox (and PDF generation) and I am having difficulty to generate my own PDF. I do have text with certain coordinates in inches/centimeters and I need to convert them to the units PDFBox uses. Any suggestions/utilities than can do this automatically? PDPageContentStream.moveTextPositionByAmount(x,y) is making no sense to me. 回答1: In general PDFBox uses the PDF user space coordinates when creating a PDF. This means: The coordinates of a page are delimited by its CropBox defaulting

.NET units class, inches to millimeters

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问题 Does .NET has Units conversion class? I need to convert inches to millimeters and vise versa. 回答1: No there is nothing like that built-in. But you can simply multiply or divide by 25.4. 回答2: I've dealt with this issue before. I recommend making two classes for distance. One that has the imperial measures and one that has the metric measures. Then, you can convert back and forth between them easily, with the obvious caveat that you lose precision when you do. Here's an example of an imperial

Conversion Between Fahrenheit and Celsius ISSUE

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i have this problem from a beginning c sharp book this for conversion between Fahrenheit and Celsius. private void button1_Click(object sender, EventArgs e) { float fahr, cel; if (Celsius.Checked == true) { fahr = float.Parse(textBox1.Text); cel = (5/9)*(fahr-32); richTextBox1.Text = "The Degree in Celsius is:" + cel.ToString() + Environment.NewLine + "cool isn't it!?"; } else if (Fahrenheit.Checked == true ) { cel = float.Parse(textBox1.Text); fahr = ((9 * cel)/5)+ 32; richTextBox1.Text = "The degree in Fahrenheit is:" + fahr.ToString() + Environment.NewLine + "cool is it!?"; } when i want to

PDFBox converting inches or centimeters into the coordinate system

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I am new to PDFBox (and PDF generation) and I am having difficulty to generate my own PDF. I do have text with certain coordinates in inches/centimeters and I need to convert them to the units PDFBox uses. Any suggestions/utilities than can do this automatically? PDPageContentStream.moveTextPositionByAmount(x,y) is making no sense to me. In general PDFBox uses the PDF user space coordinates when creating a PDF. This means: The coordinates of a page are delimited by its CropBox defaulting to its MediaBox , the values increasing left to right and bottom to top. Thus, if you create a page using

Convert DD (decimal degrees) to DMS (degrees minutes seconds) in Python?

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问题 How do you convert Decimal Degrees to Degrees Minutes Seconds In Python? Is there a Formula already written? 回答1: This is exactly what divmod was invented for: >>> def decdeg2dms(dd): ... mnt,sec = divmod(dd*3600,60) ... deg,mnt = divmod(mnt,60) ... return deg,mnt,sec >>> dd = 45 + 30.0/60 + 1.0/3600 >>> print dd 45.5002777778 >>> decdeg2dms(dd) (45.0, 30.0, 1.0) 回答2: Here is my updated version based upon Paul McGuire's. This one should handle negatives correctly. def decdeg2dms(dd): is