engauge-曲线图转换数据_图表数据提取软件资源-CSDN文库

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html：38个

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《engauge：曲线图转换数据的利器》在IT领域，数据可视化是至关重要的，而曲线图作为一种直观的展示方式，被广泛应用于科学研究、工程计算以及数据分析等多个领域。然而，当曲线图中的坐标差较大时，手动读取数据可能会产生显著的误差，这无疑为精确分析带来了挑战。为了解决这一问题，我们引入了"engauge"这款软件，它专门针对曲线图的数据转换，提供了一种既简单又准确的解决方案。 "engauge"是一款高效的数据提取工具，其设计目标是简化曲线图数据的读取和转换过程。与复杂的 AUTO CAD 相比，"engauge"更为易学易用，用户界面友好，使得非专业人员也能快速上手。通过它，用户可以轻松地将曲线图上的点位转换为精确的数据，大大减少了因读数误差带来的困扰。该软件的核心功能包括： 1. **精准定位**："engauge"具备高精度的坐标定位能力，无论坐标轴的范围如何，都能准确捕捉到曲线上的每一个点，避免了由于视觉误差导致的数据失真。 2. **交互式操作**：用户可以通过鼠标直接在图像上选取点，软件会实时显示对应的数据值，使得数据提取过程直观且迅速。 3. **批量处理**：对于包含多个曲线或者需要多次测量的图表，"engauge"支持批量处理，极大地提高了工作效率。 4. **数据导出**：提取的数据可以方便地导出为常见的数据格式，如CSV或Excel，便于后续的分析和处理。 5. **用户手册**：软件附带的`usermanual`文件提供了详尽的操作指南，帮助用户快速掌握软件的使用方法。在提供的压缩包中，除了主程序`engauge.exe`之外，`libfftw3-3.dll`是一个必要的动态链接库文件，用于实现高效的傅立叶变换功能，增强软件的计算性能。`LICENSE`文件则包含了软件的许可协议，用户在使用前应仔细阅读。`engauge.exe.local`可能包含本地化设置和配置信息，确保软件能够适应不同用户的环境。而`samples`目录下的文件则是示例数据，供用户学习和测试软件功能。 "engauge"作为一款专注于曲线图转换数据的工具，不仅简化了复杂的数据提取流程，而且提高了数据的准确性，尤其适合科研人员和数据分析者使用。它的出现，无疑为需要从曲线图中提取数据的工作带来了革命性的改变。

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engauge-曲线图转换数据（138个子文件）

pointplot.bmp 1.41MB

libfftw3-3.dll 1.33MB

engauge.exe 6MB

gridlines_log.gif 27KB

animation.gif 18KB

gridlines.gif 10KB

dateconvert.html 8KB

glossary.html 6KB

commandlineoptions.html 6KB

tutorautopointgraph.html 5KB

answerpointgraph.html 4KB

answerdiscretizing.html 4KB

answerlinegraph.html 3KB

index.html 3KB

tutorautolinegraph.html 3KB

tutormanmap.html 3KB

tutormanpointgraph.html 3KB

tutormanlinegraph.html 3KB

dateformats.html 3KB

answermap.html 3KB

contextmenuwindows.html 2KB

dlgcoordsys.html 2KB

dlgexport.html 2KB

answerselectmode.html 2KB

dlgdiscretize.html 2KB

dlggridremoval.html 2KB

answerout.html 2KB

dlgmeasuregeometry.html 2KB

contextmenukonqueror.html 2KB

dlgcurvegeometry.html 2KB

dlgpointmatch.html 2KB

answermapconst.html 2KB

answergridremoval.html 2KB

pointmatchrequirements.html 2KB

answernowindow.html 2KB

fixingaxispoints.html 1KB

dialogs.html 1KB

dlgmeasures.html 1KB

dlgsegments.html 1KB

dlggriddisplay.html 1KB

dlgcurves.html 1KB

answerother.html 1KB

answermeasuring.html 1KB

dlgsessions.html 1KB

testcoords.jpg 175KB

dateconvert.jpg 155KB

linlog.jpg 36KB

polarcircles.jpg 33KB

windowscontexta.jpg 32KB

inverse.jpg 31KB

normdist.jpg 27KB

polarplot.jpg 23KB

pointmatch.jpg 21KB

testcase.jpg 18KB

windowscontextb.jpg 15KB

windowscontextc.jpg 11KB

LICENSE 15KB

engauge.exe.local 279B

usgs.png 1.36MB

tutormanmap7.png 163KB

tutormanmap6.png 155KB

tutormanmap3.png 155KB

tutormanmap8.png 153KB

tutormanmap4.png 134KB

tutormanmap5.png 105KB

tutorautopointgraph6.png 93KB

tutormanpointgraph8.png 91KB

tutorautolinegraph6.png 87KB

tutormanpointgraph7.png 84KB

tutorautopointgraph7.png 83KB

tutorautopointgraph2.png 77KB

tutorautolinegraph11.png 74KB

tutorautopointgraph5.png 73KB

tutorautopointgraph4.png 72KB

tutorautopointgraph3.png 72KB

tutorautolinegraph7.png 71KB

tutormanlinegraph8.png 71KB

tutormanmap2.png 70KB

fixingaxispoints.png 69KB

tutorautopointgraph13.png 69KB

tutormanpointgraph6.png 67KB

tutormanpointgraph2.png 66KB

tutorautolinegraph8.png 65KB

tutorautolinegraph2.png 62KB

tutorautolinegraph3.png 62KB

tutormanlinegraph3.png 62KB

tutormanlinegraph4.png 62KB

tutormanlinegraph5.png 61KB

tutormanpointgraph3.png 61KB

tutorautolinegraph4.png 60KB

tutormanpointgraph5.png 60KB

tutorautopointgraph8.png 60KB

inverse.png 59KB

tutormanlinegraph2.png 58KB

tutormanpointgraph4.png 58KB

tutormanlinegraph6.png 58KB

tutormanlinegraph7.png 56KB

dlgcurvegeometry1.png 54KB

normdist.png 54KB

tutorautolinegraph10.png 53KB

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Date/Time Converter for Engauge Digitizer</title> <meta name="keywords" content="engauge digitizer, date, time, converter"> <meta name="description" content="This Converter Tool adds date and time handling to Engauge Digitizer"> <script src="datefromstring.js" type="text/javascript"></script> <script src="dateconvert.js" type="text/javascript"></script> <link rel=stylesheet type="text/css" href="dateconvert.css"> </head> <body> <H2> <A HREF="index.html"> <IMG SRC="animation.png" ALIGN=MIDDLE ALT="" STYLE="border: 0px"></A> Engauge Digitizer - Date/Time Converter</H2> <HR WIDTH="100%"> <h2>Introduction</h2> <p>The Converter Tool below was designed to add date and time handling to <a href="http://digitizer.sourceforge.net">Engauge Digitizer</a>. Specifically, this tool is used to convert axis point coordinates that sometimes appear in the original image as date and/or time text, into numeric date value coordinates that Engauge Digitizer can handle <sup><a href="#1">[1]</a></sup>. The numeric date values of the digitized curve points can then be exported to your favorite spreadsheet, which can convert those date values back to date and/or time text.</p> <p>The <em>absolute date and time</em> table is used to convert date/time coordinates of the axis points. The <em>relative date and time</em> table is useful for converting the date/time coordinate resolution, shown in the Engauge Digitizer status bar as a decimal number, back to more understandable standard time units.</p> <h2>Converter Tool</h2> <form name="frm1" method=post action="http://digitizer.sourceforge.net/usermanual/dateconvert.php"> <table align=center><tr><td class=settings> <a name="converter">Date value units</a>: <sup><a href="#2">[2]</a></sup><br/> <input type=radio name="excelunits" value="windows" onclick="clear_form(document.frm1)" checked>Excel for Windows<br/> <input type=radio name="excelunits" value="macintosh" onclick="clear_form(document.frm1)" >Excel for Macintosh<br/> <input type=radio name="excelunits" value="gnumeric" onclick="clear_form(document.frm1)" >Gnumeric<br/> </td><td class="settingsspacer">   </td><td class=settings> Date string format: <sup><a href="#3">[3]</a></sup><br/> <input type=radio name="format" value="english" onclick="clear_form(document.frm1)" checked>English<br/> <input type=radio name="format" value="european" onclick="clear_form(document.frm1)" >European<br/> </td></tr> </table> <br/> <table align=center> <tr> <td colspan=3 class=mainheader>absolute date and time <sup><a href="#4">[4]</a></sup></td> </tr> <tr> <td class=header>raw date value <sup><a href="#5">[5]</a></sup></td> <td class=header>raw date string <sup><a href="#6">[6]</a></sup></td> <td class=header>interpreted point in time<sup><a href="#7">[7]</a></sup></td> </tr> <tr> <td><input class=inputs type=text name=absNumIn1 onkeyup="var df=document.frm1; convert_abs_value(df.excelunits, df.absNumIn1, df.absDateIn1, df.absDateOut1)"></td> <td><input class=inputs type=text name=absDateIn1 onkeyup="var df=document.frm1; convert_abs_string(df.excelunits, df.format, df.absNumIn1, df.absDateIn1, df.absDateOut1)"></td> <td><input class=inputswide type=text name=absDateOut1 readonly></td> </tr> <tr> <td><input class=inputs type=text name=absNumIn2 onkeyup="var df=document.frm1; convert_abs_value(df.excelunits, df.absNumIn2, df.absDateIn2, df.absDateOut2)"></td> <td><input class=inputs type=text name=absDateIn2 onkeyup="var df=document.frm1; convert_abs_string(df.excelunits, df.format, df.absNumIn2, df.absDateIn2, df.absDateOut2)"></td> <td><input class=inputswide type=text name=absDateOut2 readonly></td> </tr> </table> <br/> <table align=center> <tr> <td colspan=3 class=mainheader>relative date and time <sup><a href="#8">[8]</a></sup></td> </tr> <tr> <td class=header>raw date value <sup><a href="#9">[9]</a></sup></td> <td class="header,inputs"> </td> <td class=header>interpreted interval <sup><a href="#10">[10]</a></sup></td> </tr> <tr> <td><input class=inputs type=text name=relNumIn1 onkeyup="var df=document.frm1; convert_rel_value(df.relNumIn1, df.relDateOut1)"></td> <td class=inputs></td> <td><input class=inputswide type=text name=relDateOut1 readonly></td> </tr> </table> <noscript> <p align=center><input type=submit></p> <p align=center>(Javascript is unavailable, so you must use the Submit button to update this form)</p> </noscript> </form> <h2>Example</h2> <p>In the example below (corners.png in the samples directory), the horizontal axis is specified by date coordinates. Since Engauge Digitizer is expecting numbers and not date strings, you enter date <em>09-12</em> into the Converter. Its corresponding numeric date value 38972, which appears immediately on the left, is then copied to Engauge.</p> <p align=center><img src="dateconvert.jpg" alt="example"></p> <h2>Footnotes</h2> <p><sup><a name="1">[1]</a></sup> Engauge Digitizer does not directly support date and time strings because they can quickly become very complicated: Are the dates Gregorian or Julian? Are the date values for Excel for Windows, Excel for Macintosh, or Gnumeric? Are the month and day specified in the English or European order? What values will be filled in if parts of the date and time are unspecified? Adding date and time features would only benefit a few users, while making the user interface of Engauge Digitizer much more confusing for everyone (as these footnotes would attest). <p><sup><a name="2">[2]</a></sup> Excel for Windows date value is 1 for just after midnight January 1, 1900. Excel for Macintosh date value is 0 for just after midnight January 1, 1904. Gnumeric date value is 0 for just after midnight on December 30, 1989.</p> <p><sup><a name="3">[3]</a></sup> In English units the month precedes the day (9/1 is September 1). In European units the day precedes the month (9/1 is January 9).</p> <p><sup><a name="4">[4]</a></sup> Enter date and/or time values here that correspond to points in time on the calendar. Any parts of the date that are not specified will be assumed to be the current year, month and day, correspondingly. Any parts of the time that are not specified will be assumed to be zero.</p> <p><sup><a name="5">[5]</a></sup>A number representing the days since the epoch given by footnote <sup><a href="#6">[6]</a></sup>. This number is produced by the DATEVALUE() function that is available in common spreadsheet programs. An example is the datevalue of 27395 for January 1 1975 in Excel for Windows. <font color=red>Konqueror browser bug</font> - Date values computed from date strings before December 13, 1901 20:45:32 (datevalue = 713.86518) may be stuck at the December date.</p> <p><sup><a name="6">[6]</a></sup>A string containing the date and/or time, with the date always preceding the time if both are used. The supported date and time formats are <a href="dateformats.html" target="_blank">listed</a>.</p> <p><sup><a name="7">[7]</a></sup>This read-only field displays the results of the raw date value and raw date string conversions, in terms of an absolute point in time.</p> <p><sup><a name="8">[8]</a></sup> Enter date and/or time values here that correspond to differences between points in time on the calendar. Any parts of the date and time that are not specified will be assumed to be zero.</p> <p><sup><a name="9">[9]</a></sup>A decimal number representing a time interval, in units of days.</p> <p><sup><a name="10">[10]</a></sup>This read-only field displays

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