<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Tahoma
}
--></style>
</head>
<body class='hmmessage'>
<span class="Apple-style-span" style="font-family: Helvetica; font-size: 12pt; ">Dear all,</span><div style="font-family: Helvetica; font-size: 12pt; "><br></div><div style="font-family: Helvetica; font-size: 12pt; ">First of all, thank you for this great software, using GRASS is a real pleasure!</div><div style="font-family: Helvetica; font-size: 12pt; "><br></div><div style="font-family: Helvetica; font-size: 12pt; ">I'm new to this mailing list, so forgive me if I'm asking this question in the wrong audience. I subscribed because of the following: I recently needed a frequency filter for Aster-gdem-data. I am aware that it is possible to smooth the data by averaging, but a frequency filter would be more accurate and would give more options. </div><div style="font-family: Helvetica; font-size: 12pt; "><br></div><div style="font-family: Helvetica; font-size: 12pt; ">So my questions are: </div><div style="font-family: Helvetica; font-size: 12pt; ">* Has this been considered? </div><div style="font-family: Helvetica; font-size: 12pt; ">* Would it be possible (regarding calculation time / memory resources)?</div><div style="font-family: Helvetica; font-size: 12pt; ">* If not considered, and possible; Is it good idea for other people as well?</div><div style="font-family: Helvetica; font-size: 12pt; "><br></div><div style="font-family: Helvetica; font-size: 12pt; ">I would be able to write the software but because programming is not my profession, it would take a lot of time.</div><div style="font-family: Helvetica; font-size: 12pt; "><div><div><br class="webkit-block-placeholder"></div><div id="AppleMailSignature"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Kind regards,</div><div>Ernst Jaarsma</div></div></div></span></div></span></span></div></div></div> </body>
</html>