Re: Centering text written on an image
I think you have to figure out the offset, and start from there. So, you'll need to determine the approximate width in pixels of your text string, But the quetion is how? How can I find the width of the string? I tried making a table of widths and that does not work really. For example with the strings AWA and HWH with Arial font the A is wider than H the kerning means that HWH is wider. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311553 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: Centering text written on an image
Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width, then with that info in hand, write your text onto your image? Rick -Original Message- From: Kevin Roche [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 6:04 AM To: CF-Talk Subject: Re: Centering text written on an image I think you have to figure out the offset, and start from there. So, you'll need to determine the approximate width in pixels of your text string, But the quetion is how? How can I find the width of the string? I tried making a table of widths and that does not work really. For example with the strings AWA and HWH with Arial font the A is wider than H the kerning means that HWH is wider. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311554 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Centering text written on an image
that's exactly what i am doing for my client who wants to create custom ads for their products (tours). my situation is easier in a way that the ads are pre-st size and i have a transparent .png of same size to put text on, add shadows etc, and then overlay it over the product image. easy as pie with cf8 and imageUtils.cfc from Ray/Ben Co. Azadi Saryev Sabai-dee.com http://www.sabai-dee.com/ Rick Faircloth wrote: Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width, then with that info in hand, write your text onto your image? Rick ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311555 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: Centering text written on an image
You will also find related functions in ImageUtils as well. If I remember right we (CFC was made by Ben Nadel, myself, and others) also have a generic 'getSize' func for text as well. Either way though, the CFC makes this operation trivial. On Fri, Aug 22, 2008 at 1:03 PM, Chris Blackwell [EMAIL PROTECTED] wrote: Hi, I want to add some text to an image but have it centered rather than left justified. Does anyone know how to do that? Kevin Roche http://imageutils.riaforge.org/ - getCenteredTextPosition() ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311557 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: Centering text written on an image
Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width I have no Idea how to do that. Can you tell me how to find the width of the text? ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311558 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: Centering text written on an image
Yes, again, the CFC has a way to get the height/width of _just_ a textual component. On Tue, Aug 26, 2008 at 7:42 AM, Kevin Roche [EMAIL PROTECTED] wrote: Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width I have no Idea how to do that. Can you tell me how to find the width of the text? ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311560 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: Centering text written on an image
What I'm thinking is trying to avoid determining the text width by creating an image of just the text and measuring that. Once you have that width information, you can use it to determine how to center the text when you apply it to the background image. Such as: Here's your text: MyText Create an image of just that text: |MyText| and determine width: 220px Here's your background: - | | - Background image width: 540px Difference: 540px - 220px = 320px Half that is left offset: 160px Use that info (160px) as the basis for centering your text. Does that make sense? I know you can get the width of an image using javascript (jQuery recommended), but the others have also pointed to some other potential resources... CFC's, etc. Hope this helps...I'm going to need a solution to this at some point, too! (Realize I haven't worked with applying text to images, yet, so my approach may be totally off-base. Just thinking out loud...which may be a bad idea before coffee :o) Rick -Original Message- From: Kevin Roche [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 8:43 AM To: CF-Talk Subject: Re: Centering text written on an image Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width I have no Idea how to do that. Can you tell me how to find the width of the text? ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311561 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: Centering text written on an image
Ray's approach is the best way to go. It's going to be better for the long run. It's good to know that CFC is there, Ray. I'm sure I'll be making using of it, too! By the way...if it can be explained without taking too much of your time...how does the CFC measure the height and width of text without resorting to an image, given all the variables in font, size, etc. Rick -Original Message- From: Raymond Camden [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 9:17 AM To: CF-Talk Subject: Re: Centering text written on an image Yes, again, the CFC has a way to get the height/width of _just_ a textual component. On Tue, Aug 26, 2008 at 7:42 AM, Kevin Roche [EMAIL PROTECTED] wrote: Is there a way to add an extra step or two and make an image of just your text, determine that width which gives you your string width I have no Idea how to do that. Can you tell me how to find the width of the text? ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311564 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Centering text written on an image
how does the CFC measure the height and width of text without resorting to an image Any decent text/Image processing library will provide some function to calculate the physical length of a string given a specific font and size. And I'm pretty sure Ray's CFC is using a decent library. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311566 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: Centering text written on an image
What I'm thinking is trying to avoid determining the text width by creating an image of just the text and measuring that. Yes but how? When you create an image in ColdFusion you have to give it a width and a height. If you don't you get an error when you try and use it: The image on which the operation was executed is undefined. An image must have some non-zero positive dimensions for image operations to be applicable. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311567 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Centering text written on an image
It's using a bunch of Java code from an Adobe blogger (used with permission). I forget the name, but it should be credited in the CFC itself. I definitely can't take credit for the code, although I think I handled the wrapping up in the method. That counts for something, right? ;) Anyway, that URL again: http://imageutils.riaforge.org -Raymond On Tue, Aug 26, 2008 at 8:56 AM, Claude Schneegans [EMAIL PROTECTED] wrote: how does the CFC measure the height and width of text without resorting to an image Any decent text/Image processing library will provide some function to calculate the physical length of a string given a specific font and size. And I'm pretty sure Ray's CFC is using a decent library. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311568 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: Centering text written on an image
Thanks, Claude. I figured I could look at the CFC code, but it would most likely take wy too long for me to figure out what was happening. Good stuff to know. Rick -Original Message- From: Claude Schneegans [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 9:57 AM To: CF-Talk Subject: Re: Centering text written on an image how does the CFC measure the height and width of text without resorting to an image Any decent text/Image processing library will provide some function to calculate the physical length of a string given a specific font and size. And I'm pretty sure Ray's CFC is using a decent library. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311569 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: Centering text written on an image
This just shows my ignorance about text overlay. I was hoping there was a way with CF 8 to just tell it what font, size, and text and it would calculate the rest. But, apparently not. CF 9 should definitely incorporate that. Ray's approach seems to be the best solution of all. It's the only one I know of that integrated into CF and can take only the font, size, and text and provide you with dimensions, from the description we've gotten. I'd definitely check into that. http://imageutils.riaforge.org Rick -Original Message- From: Kevin Roche [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 10:07 AM To: CF-Talk Subject: Re: Centering text written on an image What I'm thinking is trying to avoid determining the text width by creating an image of just the text and measuring that. Yes but how? When you create an image in ColdFusion you have to give it a width and a height. If you don't you get an error when you try and use it: The image on which the operation was executed is undefined. An image must have some non-zero positive dimensions for image operations to be applicable. ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311590 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: Centering text written on an image
Are you doing this dynamically using cfimage or Photoshop or just how? ~David Subject: Centering text written on an image From: [EMAIL PROTECTED] To: cf-talk@houseoffusion.com Date: Fri, 22 Aug 2008 11:09:37 -0400 Hi, I want to add some text to an image but have it centered rather than left justified. Does anyone know how to do that? Kevin Roche ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311410 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Centering text written on an image
I am using ColdFusion to write some text on an image and I don't know in advance what the string is going to be so I can't guess where to start writing it. Is there a way to say write this text around a particular point? I can check from the image how wide it is and work out where the centre is but I can't see how to either tell the ImageDrawText() function to center it or work out how wide the text will be once its written. Kevin Roche ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311413 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Centering text written on an image
Hey Kevin, I ran into a similar problem. The main issue you are going to face is not knowing how long the final rendered string will be once it's turned into a graphic. So far I've found no solution using the native CF8 image tools. If you really HAVE to accomplish this then the only (easy) way I found to do is to use ImageFlare from Efflare http://efflare.com/ It has a much more robust engine when it comes to complex tasks like generating graphics containing random types of text. If you're going to go down this road ping me off list and I'll shoot you some code samples. [EMAIL PROTECTED] =] -- Alan Rother Adobe Certified Advanced ColdFusion MX 7 Developer Manager, Phoenix Cold Fusion User Group, AZCFUG.org ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311419 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: Centering text written on an image
I am using ColdFusion to write some text on an image and I don't know in advance what the string is going to be so I can't guess where to start writing it. Is there a way to say write this text around a particular point? I can check from the image how wide it is and work out where the centre is but I can't see how to either tell the ImageDrawText() function to center it or work out how wide the text will be once its written. I think you have to figure out the offset, and start from there. So, you'll need to determine the approximate width in pixels of your text string, and subtract half of that from the distance from the edge of your image to the center. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ Fig Leaf Software provides the highest caliber vendor-authorized instruction at our training centers in Washington DC, Atlanta, Chicago, Baltimore, Northern Virginia, or on-site at your location. Visit http://training.figleaf.com/ for more information! ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311420 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: Centering text written on an image
Kevin Wrote I am using ColdFusion to write some text on an image and I don't know in advance what the string is going to be so I can't guess where to start writing it. Is there a way to say write this text around a particular point? I can check from the image how wide it is and work out where the centre is but I can't see how to either tell the ImageDrawText() function to center it or work out how wide the text will be once its written. The only way I know is to set the start point of the text. To do this you would take the TotalImageWidth - TextWidth/2 to find where the start point should be. That would be one way. ~David _ Talk to your Yahoo! Friends via Windows Live Messenger. Find out how. http://www.windowslive.com/explore/messenger?ocid=TXT_TAGLM_WL_messenger_yahoo_082008 ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311426 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: Centering text written on an image
Hi, I want to add some text to an image but have it centered rather than left justified. Does anyone know how to do that? Kevin Roche http://imageutils.riaforge.org/ - getCenteredTextPosition() ~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:311431 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
