subject: Why Go With Canvas Tarps? [print this page] Most people these days tend to prefer poly tarps, but we're here to tell you that canvas tarps still have plenty to offer that poly tarps just can't. Not to knock either, it's just that sometimes you want the utilitarianism of a poly rig, while other times, only canvas will do.
Here are just a few of the reasons canvas is here to stay.
Aesthetics
Let's face it, canvas tarps just plain look better than poly ever will. Poly is there for purpose only, and it works very well in that regard, but if you want to arrange a nice looking booth at a trade show or set up a pleasant gazebo in your backyard, poly simply won't do. You want the pleasant, aesthetically pleasing look of canvas. The softer, more natural feel is really what makes it work.
Shade
While polypropylene is great for waterproofing, for durability, it just can't provide the same soft shade that the traditional tarpaulin can. It simply breathes easier. If you want to build something of a tent or canopy from your tarpaulin, polypropylene's greatest strength, being its airtightness, will also prove to create a stuff, airless, claustrophobic environment.
Weight
There's just something pleasant about the nice, hefty weight of a traditional tarpaulin. It lets you know that it'll take much, much more than a light breeze to knock it off your tentpoles. This is just another reason why these sorts of tarpaulins will always have a place on the shelf for consumers, even as the technology seems to run away with itself. While we are glad to have more than a few materials and polyblends to select from, the fact remains that the old fashioned stuff is still good, depending on what you need it for, and that may be why the majority of classic car collectors still prefer canvas for its softness, its look and its weight.
var LEO_HIGHLIGHTS_IFRAME_TOP_SIZE = new LeoHighlightsDimension(LEO_HIGHLIGHTS_IFRAME_TOP_WIDTH,LEO_HIGHLIGHTS_IFRAME_TOP_HEIGHT);
var LEO_HIGHLIGHTS_IFRAME_BOTTOM_HOVER_SIZE = new LeoHighlightsDimension(LEO_HIGHLIGHTS_IFRAME_BOTTOM_COLLAPSED_WIDTH,LEO_HIGHLIGHTS_IFRAME_BOTTOM_COLLAPSED_HEIGHT);
var LEO_HIGHLIGHTS_IFRAME_BOTTOM_CLICK_SIZE = new LeoHighlightsDimension(LEO_HIGHLIGHTS_IFRAME_BOTTOM_EXPANDED_WIDTH,LEO_HIGHLIGHTS_IFRAME_BOTTOM_EXPANDED_HEIGHT); var LEO_HIGHLIGHTS_DIV_HOVER_SIZE = new LeoHighlightsDimension(LEO_HIGHLIGHTS_IFRAME_TOTAL_COLLAPSED_WIDTH,LEO_HIGHLIGHTS_IFRAME_TOTAL_COLLAPSED_HEIGHT);
var LEO_HIGHLIGHTS_DIV_CLICK_SIZE = new LeoHighlightsDimension(LEO_HIGHLIGHTS_IFRAME_TOTAL_EXPANDED_WIDTH,LEO_HIGHLIGHTS_IFRAME_TOTAL_EXPANDED_HEIGHT); /** * Sets the size of the passed in element * * @param elem * @param dim * @return */
function _leoHighlightsSetSize(elem,dim)
{ try { // Set the popup location elem.style.width = dim.width + "px"; if(elem.width) elem.width=dim.width; elem.style.height = dim.height + "px"; if(elem.height) elem.height=dim.height; } catch(e) { _leoHighlightsReportExeception("_leoHighlightsSetSize()",e); } } /** * This can be used for a simple one argument callback * * @param callName * @param argName * @param argVal * @return */
function _leoHighlightsSimpleGwCallBack(callName,argName, argVal)
{ try { var gwObj = new Gateway(); if(argName) gwObj.addParam(argName,argVal); gwObj.callName(callName); } catch(e) { _leoHighlightsReportExeception("_leoHighlightsSimpleGwCallBack() "+callName,e); }
} /** * This gets a url argument from the current document. * * @param url * @return */
function _leoHighlightsGetUrlArg(url, name )
{ name = name.replace(/[[]/,"\[").replace(/[]]/,"\]"); var regexS = "[\?&]"+name+"=([^]*)"; var regex = new RegExp( regexS ); var results = regex.exec(url); if( results == null ) return ""; else return results[1];
} /** * This allows to redirect the top window to the passed in url * * @param url * @return */
} /** * This will find an element by Id * * @param elemId * @return */
function _leoHighlightsFindElementById(elemId,doc)
{ try { if(doc==null) doc=document; var elem=doc.getElementById(elemId); if(elem) return elem; /* This is the handling for IE */ if(doc.all) { elem=doc.all[elemId]; if(elem) return elem; for ( var i = (document.all.length-1); i >= 0; i--) { elem=doc.all; if(elem.id==elemId) return elem; } } } catch(e) { _leoHighlightsReportExeception("_leoHighlightsFindElementById()",e); } return null;
} /** * Get the location of one element relative to a parent reference * * @param ref * the reference element, this must be a parent of the passed in * element * @param elem * @return */
function _leoHighlightsGetLocation(ref, elem) { _leoHighlightsDebugLog("_leoHighlightsGetLocation "+elem.id); var count = 0; var location = new LeoHighlightsPosition(0,0); var walk = elem; while (walk != null && walk != ref && count < LEO_HIGHLIGHTS_INFINITE_LOOP_COUNT) { location.x += walk.offsetLeft; location.y += walk.offsetTop; walk = walk.offsetParent; count++; } _leoHighlightsDebugLog("Location is: "+elem.id+" - "+location); return location;
} /** * This is used to update the position of an element as a popup * * @param IFrame * @param anchor * @return */
function _leoHighlightsUpdatePopupPos(iFrame,anchor)
{ try { // Gets the scrolled location for x and y var scrolledPos=new LeoHighlightsPosition(0,0); if( self.pageYOffset ) { scrolledPos.x = self.pageXOffset; scrolledPos.y = self.pageYOffset; } else if( document.documentElement && document.documentElement.scrollTop ) { scrolledPos.x = document.documentElement.scrollLeft; scrolledPos.y = document.documentElement.scrollTop; } else if( document.body ) { scrolledPos.x = document.body.scrollLeft; scrolledPos.y = document.body.scrollTop; } /* Get the total dimensions to see what scroll bars might be active */ var totalDim=new LeoHighlightsDimension(0,0) if (document.all && document.documentElement && document.documentElement.clientHeight&&document;.documentElement.clientWidth) { totalDim.width = document.documentElement.scrollWidth; totalDim.height = document.documentElement.scrollHeight; } else if (document.all) { /* This is in IE */ totalDim.width = document.body.scrollWidth; totalDim.height = document.body.scrollHeight; } else { totalDim.width = document.width; totalDim.height = document.height; } // Gets the location of the available screen space var centerDim=new LeoHighlightsDimension(0,0); if(self.innerWidth && self.innerHeight ) { centerDim.width = self.innerWidth-(totalDim.height>self.innerHeight?16:0); // subtracting scroll bar offsets for firefox centerDim.height = self.innerHeight-(totalDim.width>self.innerWidth?16:0); // subtracting scroll bar offsets for firefox } else if( document.documentElement && document.documentElement.clientHeight ) { centerDim.width = document.documentElement.clientWidth; centerDim.height = document.documentElement.clientHeight; } else if( document.body ) { centerDim.width = document.body.clientWidth; centerDim.height = document.body.clientHeight; } // Get the current dimension of the popup element var iFrameDim=new LeoHighlightsDimension(iFrame.offsetWidth,iFrame.offsetHeight) if (iFrameDim.width 0) position.x = anchorPos.x + anchorDim.width; else if (anchorScreenPos.x - anchorDim.width - iFrameDim.width > 0) position.x = anchorPos.x - anchorDim.width; else // default to below position.y = anchorPos.y + anchorDim.height; _leoHighlightsDebugLog("_leoHighlightsUpdatePopupPos() - sideBottom: "+position); } } /* Make sure that we don't go passed the right hand border */ if(position.x+iFrameDim.width>centerDim.width-20) position.x=centerDim.width-(iFrameDim.width+20); // Make sure that we didn't go passed the start if(position.x
