<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1027" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello, <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am running QGIS 2.8.9 and I am currently displaying a line that varies in thickness along its length. The entire line is made up of many smaller lines each having a different thickness. It was added using a csv file using a WKT column that contained the information necessary to make the lines. These smaller lines all have different thicknesses corresponding to a numeric value that had been previously calculated in the csv file.<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal>This all works as it should.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My problem is that I now want to have this change at different times when I use the time manager. In other words, I want the thickness of each line to change from one week to another. The csv file has a start time and an end time as shown below in columns “Timestamp”, and “End Time”. The first column contains the numbers that I want to indicate the thickness.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Expected x y WKT Timestamp End Time<o:p></o:p></p><p class=MsoNormal>0.0001109 -1247455.1 1419954.2 LineString(-1247455.1 1419954.2, -1247455.2 1419954.3) 4/1/2016 6:00 4/8/2016 6:00<o:p></o:p></p><p class=MsoNormal>0.004392 -1247455.2 1419954.3 LineString(-1247455.2 1419954.3, -1247571 1419993) 4/1/2016 6:00 4/8/2016 6:00<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>After 4/8/2016 6:00 there are different values for the thickness of the lines that I want displayed. These are lower down in the same file. I show a sample of what would be in the csv file at this point below:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Expected x y WKT Timestamp End Time<o:p></o:p></p><p class=MsoNormal>0.002145 -1247455.1 1419954.2 LineString(-1247455.1 1419954.2, -1247455.2 1419954.3) 4/8/2016 6:00 4/15/2016 6:00<o:p></o:p></p><p class=MsoNormal>0.003391 -1247455.2 1419954.3 LineString(-1247455.2 1419954.3, -1247571 1419993) 4/8/2016 6:00 4/15/2016 6:00<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Each new week, all columns except the first column remain exactly the same, because all I want to do is have the thickness of the line segments change with time.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I tried to do this by opening the time manager and adding a layer. I set the start time as the “Timestamp” column and the end time as the “End Time” column. I am trying to make QGIS display one thickness for the first week and then show the second thickness for the second week and so on.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I would have expected this to work, but instead the layer doesn’t show up on the map at all after doing this. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Could someone please tell me what I am doing wrong or how I could possibly resolve this issue?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Luke<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>