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POWill Decimal or Double work better for translations that need to be accurate up to .00001?
 

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  1. POWill Decimal or Double work better for translations that need to be accurate up to .00001?
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    <p>I'm an inspector at a machine shop. I have an html report generated by another inspector that has some problems I need to fix. This isn't the first time: I need something better than <code>PowerShell</code> and <code>RegEx</code>. (Fear not internet warriors, I know I shouldn't use <code>RegEx</code> for html. I'm using <code>HtmlAgilityPack</code> now.)</p> <p>I'm aware there are a lot of similar discussions on SO and on the internet in general. I didn't find anything quite this specific. I can write some small experiment apps to test some of this (and I plan to) but, I want to have some idea of if it will be future safe before I implement all of it. Even though I'm not a programmer by trade I have a good grasp of the concepts we're talking about; Don't worry about talking over my head.</p> <p>Over a series of transformations is it likely I will have more than .0001 error? What about .00001?<br> -If a report's alignment is off, I may need to rotate and translate it multiple times.<br> -I've only implemented rotation and translation at this time but, I plan on adding more transformations that may increase the number and complexity of operations.<br> -The integer component can go into the thousands.<br> -Our instruments are certified to .0001 typically. Normal significant digit rules for scientific measurements apply.</p> <p>Will the overhead of <code>Decimal</code> and writing the trig functions manually be incredibly time consuming (edit: at runtime)?<br> -Typically a report has 100 to 100 points. Each point is actually 2 points: <code>Nominal</code> (as modeled) and <code>Actual</code> (as measured.)<br> -Easiest to test, but I want to know before implementing math functions for Decimal.</p> <p>Side question:<br> I have a point class, <code>Point3D</code>, that holds <code>x</code>, <code>y</code> and <code>z</code>. Since each data point is two of these (the <code>Nominal</code> and <code>Actual</code>.) I then have a class, <code>MeasuredPoint</code>, with two <code>Point3D</code> instances. There has to be a better name than <code>MeasuredPoint</code> that isn't annoyingly long.</p> <p>Oh yeah, this is C#/.Net. Thanks,</p>
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    1. USJosiah
    1. USJosiah
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    1. CORe: class name - PointPair, PointSet, Node, Point?
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      1. USjball
    2. COPoints or PointInfo?
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      1. USJohn Fisher
    3. COWhats up with the -Info postfix? It doesn't make sense. What does it stand for? "Unlike Point, PointInfo contains... er... information?" I actually like MeasuredPoint, even if it is a bit long for something used very often. But fortunately we can all count on Intellisense or better (ReSharper would probably accept `mp`, Ctrl+Alt+Space)
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      1. POWill Decimal or Double work better for translations that need to be accurate up to .00001?
      1. USChristian Klauser
 

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