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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;text-indent:.5in;mso-line-height-alt:11.75pt;background:white'><span style='font-size:12.0pt;color:#222222'>I am happy to share about a some QGIS plugins developed for the Sri Lanka Survey Department staff and the professional survey community. </span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:10.45pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>I am a </span><span style='color:#222222'> surveyor attached to the LIS branch at the headquarters and w</span><span style='font-size:12.0pt;color:#222222'>e receive field survey data from all over the country for data processing. When processing these data, spatial errors such as gaps, overlaps and computation errors of the polygon extents and other errors which leads to issues in the QA process </span><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222'>could be seen,<br></span><span style='font-size:12.0pt;color:#222222'>Therefore we have decided to develop some self-quality checking tools to the surveyors in the field to reduce these errors. This will leads to better quality digital data ,which will help to produce better hard copy plans which are issued to the public as well.</span><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>Therefore, under the directives of the Research and Development section of the Department, I developed three plugins named as</span><span style='color:#222222'><o:p></o:p></span></p><p class=m5937913827226924496gmail-msolistparagraph style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;font-family:Symbol;color:#222222'>·</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif;color:#222222'> </span><span style='font-size:12.0pt;color:#222222'>Parcel Checker</span><span style='color:#222222'><o:p></o:p></span></p><p class=m5937913827226924496gmail-msolistparagraph style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;font-family:Symbol;color:#222222'>·</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif;color:#222222'> </span><span style='font-size:12.0pt;color:#222222'>Extent checker</span><span style='color:#222222'><o:p></o:p></span></p><p class=m5937913827226924496gmail-msolistparagraph style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:8.0pt;margin-left:.5in;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;font-family:Symbol;color:#222222'>·</span><span style='font-size:7.0pt;font-family:"Times New Roman",serif;color:#222222'> </span><span style='font-size:12.0pt;color:#222222'>Topology checker</span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:8.0pt;margin-left:.25in;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'> <b>“Parcel checker”</b>: help to check the land parcel boundaries and if the boundaries drawn using the department standard data layers, the plan will be generated correctly. </span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:8.0pt;margin-left:.25in;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><b><span style='font-size:12.0pt;color:#222222'> “Extent checker”:</span></b><span style='font-size:12.0pt;color:#222222'> helps to check the computed spatial extent of polygons with the written texts in the hardcopy survey Plan. If there any mismatching, the difference will be reported in the auto-generated text file.</span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:8.0pt;margin-left:.25in;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><b><span style='font-size:12.0pt;color:#222222'>“Topology checker”:</span></b><span style='font-size:12.0pt;color:#222222'> allow to check the gaps and overlaps of the polygons that generated during two time laps comparing the old survey polygon boundary that published as a feature and the processed current data.</span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:11.75pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>Now the tools are being used and verified by our department and we are aiming at make these tools available as QGIS Plugins publicly so more than 800 government surveyors and 1500 registered licensed surveyors would be the benefited.</span><span style='color:#222222'><o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:10.45pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>If you wish to try these tools, please feel free to contact me<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:10.45pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>thanking you<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:8.0pt;text-align:justify;text-justify:inter-ideograph;mso-line-height-alt:10.45pt;background:white;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;background-image:initial;background-position:initial;background-size: initial;background-repeat:initial;background-origin: initial;background-clip: initial;word-spacing:0px'><span style='font-size:12.0pt;color:#222222'>Nishan Prabhath<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>